Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers

    PCM422 Search Results

    PCM422 Result Highlights (4)

    Part ECAD Model Manufacturer Description Download Buy
    PCM4220PFB Texas Instruments 123dB SNR Stereo Audio ADC with PCM output 48-TQFP -40 to 85 Visit Texas Instruments Buy
    PCM4222PFBR Texas Instruments 124dB SNR Stereo Audio ADC with PCM/DSD and modulator outputs 48-TQFP -40 to 85 Visit Texas Instruments Buy
    PCM4222PFB Texas Instruments 124dB SNR Stereo Audio ADC with PCM/DSD and modulator outputs 48-TQFP -40 to 85 Visit Texas Instruments Buy
    PCM4220PFBR Texas Instruments 123dB SNR Stereo Audio ADC with PCM output 48-TQFP -40 to 85 Visit Texas Instruments Buy
    SF Impression Pixel

    PCM422 Price and Stock

    Texas Instruments PCM4222PFBR

    IC ADC/AUDIO 24BIT 216K 48TQFP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PCM4222PFBR Digi-Reel 5,276 1
    • 1 $23.07
    • 10 $18.492
    • 100 $16.0943
    • 1000 $15.13508
    • 10000 $15.13508
    Buy Now
    PCM4222PFBR Cut Tape 5,276 1
    • 1 $23.07
    • 10 $18.492
    • 100 $16.0943
    • 1000 $15.13508
    • 10000 $15.13508
    Buy Now
    PCM4222PFBR Reel 4,000 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $13.78995
    • 10000 $13.78995
    Buy Now
    Mouser Electronics PCM4222PFBR 5,946
    • 1 $16.18
    • 10 $13.71
    • 100 $13.71
    • 1000 $13.37
    • 10000 $13.37
    Buy Now
    Verical PCM4222PFBR 998 1
    • 1 $16.047
    • 10 $13.656
    • 100 $13.385
    • 1000 $13.057
    • 10000 $13.057
    Buy Now
    Arrow Electronics PCM4222PFBR Cut Strips 998 6 Weeks 1
    • 1 $16.047
    • 10 $13.656
    • 100 $13.385
    • 1000 $13.057
    • 10000 $13.057
    Buy Now
    Bristol Electronics PCM4222PFBR 5,277
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    PCM4222PFBR 120 1
    • 1 $15
    • 10 $10.125
    • 100 $8.625
    • 1000 $8.625
    • 10000 $8.625
    Buy Now
    Quest Components PCM4222PFBR 800
    • 1 $43.8472
    • 10 $43.8472
    • 100 $43.8472
    • 1000 $32.8854
    • 10000 $32.8854
    Buy Now
    PCM4222PFBR 96
    • 1 $20
    • 10 $20
    • 100 $12
    • 1000 $12
    • 10000 $12
    Buy Now

    Texas Instruments PCM4222PFB

    IC ADC/AUDIO 24BIT 216K 48TQFP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PCM4222PFB Tray 1,762 1
    • 1 $21.72
    • 10 $17.505
    • 100 $21.72
    • 1000 $21.72
    • 10000 $21.72
    Buy Now
    Mouser Electronics PCM4222PFB 320
    • 1 $22.12
    • 10 $17.42
    • 100 $16.48
    • 1000 $16.47
    • 10000 $16.47
    Buy Now
    Quest Components PCM4222PFB 680
    • 1 $43.8472
    • 10 $43.8472
    • 100 $43.8472
    • 1000 $32.8854
    • 10000 $32.8854
    Buy Now
    PCM4222PFB 10
    • 1 $27.5554
    • 10 $26.1776
    • 100 $26.1776
    • 1000 $26.1776
    • 10000 $26.1776
    Buy Now

    Texas Instruments PCM4220PFBR

    IC ADC/AUDIO 24BIT 216K 48TQFP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PCM4220PFBR Digi-Reel 1,530 1
    • 1 $23.34
    • 10 $18.719
    • 100 $16.2961
    • 1000 $15.32684
    • 10000 $15.32684
    Buy Now
    PCM4220PFBR Cut Tape 1,530 1
    • 1 $23.34
    • 10 $18.719
    • 100 $16.2961
    • 1000 $15.32684
    • 10000 $15.32684
    Buy Now
    PCM4220PFBR Reel 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $10.77125
    • 10000 $10.77125
    Buy Now
    Mouser Electronics PCM4220PFBR 719
    • 1 $20.28
    • 10 $14.79
    • 100 $11.81
    • 1000 $10.77
    • 10000 $10.77
    Buy Now
    Arrow Electronics PCM4220PFBR Cut Strips 985 6 Weeks 1
    • 1 $11.768
    • 10 $11.584
    • 100 $11.215
    • 1000 $10.846
    • 10000 $10.846
    Buy Now
    Chip1Stop PCM4220PFBR Cut Tape 3,000
    • 1 $13.4
    • 10 $13.2
    • 100 $13.1
    • 1000 $12.1
    • 10000 $12.1
    Buy Now
    Win Source Electronics PCM4220PFBR 8,450
    • 1 -
    • 10 $14.0745
    • 100 $11.4355
    • 1000 $11.4355
    • 10000 $11.4355
    Buy Now

    Texas Instruments PCM4220PFB

    IC ADC/AUDIO 24BIT 216K 48TQFP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PCM4220PFB Tray 687 1
    • 1 $19.94
    • 10 $16.026
    • 100 $15.0075
    • 1000 $15.0075
    • 10000 $15.0075
    Buy Now
    Mouser Electronics PCM4220PFB 1,392
    • 1 $21.74
    • 10 $17.02
    • 100 $15.82
    • 1000 $15.82
    • 10000 $15.82
    Buy Now
    Newark PCM4220PFB Cut Tape 1
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now
    Bristol Electronics PCM4220PFB 17
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    Quest Components PCM4220PFB 1
    • 1 $20.6861
    • 10 $19.307
    • 100 $19.307
    • 1000 $19.307
    • 10000 $19.307
    Buy Now
    Win Source Electronics PCM4220PFB 8,400
    • 1 -
    • 10 $18.9971
    • 100 $15.933
    • 1000 $15.933
    • 10000 $15.933
    Buy Now

    Texas Instruments PCM4222EVM

    EVAL MODULE FOR PCM4222
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PCM4222EVM Box 4 1
    • 1 $238.8
    • 10 $238.8
    • 100 $238.8
    • 1000 $238.8
    • 10000 $238.8
    Buy Now
    Mouser Electronics PCM4222EVM 9
    • 1 $264.66
    • 10 $264.66
    • 100 $264.66
    • 1000 $264.66
    • 10000 $264.66
    Buy Now

    PCM422 Datasheets (24)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    PCM4220 Texas Instruments High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter Original PDF
    PCM4220PFB Texas Instruments High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter Original PDF
    PCM4220PFB Texas Instruments 123dB SNR Stereo Audio ADC with PCM output 48-TQFP -40 to 85 Original PDF
    PCM4220PFB Texas Instruments Data Acquisition - Analog to Digital Converters (ADC), Integrated Circuits (ICs), IC ADC 24BIT SER 216K 48TQFP Original PDF
    PCM4220PFBG4 Texas Instruments High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter Original PDF
    PCM4220PFBG4 Texas Instruments 123dB SNR Stereo Audio ADC with PCM output 48-TQFP -40 to 85 Original PDF
    PCM4220PFBG4 Texas Instruments Data Acquisition - Analog to Digital Converters (ADC), Integrated Circuits (ICs), IC ADC 24BIT SER 216K 48TQFP Original PDF
    PCM4220PFBR Texas Instruments High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter Original PDF
    PCM4220PFBR Texas Instruments 123dB SNR Stereo Audio ADC with PCM output 48-TQFP -40 to 85 Original PDF
    PCM4220PFBR Texas Instruments Data Acquisition - Analog to Digital Converters (ADC), Integrated Circuits (ICs), IC ADC 24BIT 216KHZ 2CH 48-TQFP Original PDF
    PCM4220PFBRG4 Texas Instruments 123dB SNR Stereo Audio ADC with PCM output 48-TQFP -40 to 85 Original PDF
    PCM4220PFBRG4 Texas Instruments Data Acquisition - Analog to Digital Converters (ADC), Integrated Circuits (ICs), IC ADC 24BIT SER 216K 48TQFP Original PDF
    PCM4222 Burr-Brown High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter Original PDF
    PCM4222EVM Texas Instruments Evaluation Boards - Analog to Digital Converters (ADCs), Programmers, Development Systems, EVAL MODULE FOR PCM4222 Original PDF
    PCM4222PFB Burr-Brown High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter Original PDF
    PCM4222PFB Texas Instruments 124dB SNR Stereo Audio ADC with PCM/DSD and modulator outputs 48-TQFP -40 to 85 Original PDF
    PCM4222PFB Texas Instruments Data Acquisition - Analog to Digital Converters (ADC), Integrated Circuits (ICs), IC ADC 24BIT SER 216K 48TQFP Original PDF
    PCM4222PFBG4 Texas Instruments 124dB SNR Stereo Audio ADC with PCM/DSD and modulator outputs 48-TQFP -40 to 85 Original PDF
    PCM4222PFBG4 Texas Instruments Data Acquisition - Analog to Digital Converters (ADC), Integrated Circuits (ICs), IC ADC 24BIT SER 216K 48TQFP Original PDF
    PCM4222PFBR Burr-Brown High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter Original PDF

    PCM422 Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    10MW

    Abstract: OPA227 PCM4220 SN74LVC1G125 T520 TQFP-48 transmitter FS-1000
    Text: PCM4220 PC M4 220 www.ti.com. SBAS407C – DECEMBER 2006 – REVISED AUGUST 2009 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling


    Original
    PDF PCM4220 SBAS407C 24-Bit, 216kHz 216kHz 24-bit 123dB 20kHz 121dB 10MW OPA227 PCM4220 SN74LVC1G125 T520 TQFP-48 transmitter FS-1000

    transmitter FS-1000

    Abstract: No abstract text available
    Text: BurrĆBrown Products from Texas Instruments PC M4 220 PCM4220 SBAS407A – DECEMBER 2006 – REVISED MAY 2007 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter FEATURES • • • • • • Supports Linear PCM Output Data


    Original
    PDF PCM4220 SBAS407A 24-Bit, 216kHz 24-bit 123dB 20kHz 121dB transmitter FS-1000

    Untitled

    Abstract: No abstract text available
    Text: BurrĆBrown Products from Texas Instruments PC M4 220 PCM4220 SBAS407 – DECEMBER 2006 FEATURES • • • • • • Supports Linear PCM Output Data – Output Sampling Rates from 8kHz to 216kHz Differential Voltage Inputs On-Chip Voltage Reference Improves Power


    Original
    PDF PCM4220 SBAS407 24-Bit, 216kHz 24-Bit 123dB 20kHz 121dB

    Untitled

    Abstract: No abstract text available
    Text: BurrĆBrown Products from Texas Instruments PC M4 222 PCM4222 SBAS399A – OCTOBER 2006 – REVISED MARCH 2007 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter FEATURES • • • • • • Supports Linear PCM, 1-Bit Direct Stream


    Original
    PDF PCM4222 SBAS399A 24-Bit, 216kHz 216kHz 144MHz 124dB 20kHz 122dBpplication

    4392 ic equivalent

    Abstract: 10MW OPA227 PCM4220 SN74LVC1G125 T520 TQFP-48 sonar transmitter
    Text: BurrĆBrown Products from Texas Instruments PC M4 220 PCM4220 SBAS407A – DECEMBER 2006 – REVISED MAY 2007 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter FEATURES • • • • • • Supports Linear PCM Output Data


    Original
    PDF PCM4220 SBAS407A 24-Bit, 216kHz 216kHz 24-bit 123dB 20kHz 121dB 20kHz 4392 ic equivalent 10MW OPA227 PCM4220 SN74LVC1G125 T520 TQFP-48 sonar transmitter

    43TDM

    Abstract: No abstract text available
    Text: BurrĆBrown Products from Texas Instruments PC M4 222 PCM4222 SBAS399A – OCTOBER 2006 – REVISED MARCH 2007 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter FEATURES • • • • • • Supports Linear PCM, 1-Bit Direct Stream


    Original
    PDF PCM4222 SBAS399A 24-Bit, 216kHz 216kHz 144MHz 124dB 20kHz 122dBpplication 43TDM

    NE553

    Abstract: No abstract text available
    Text: PCM4220 PC M4 220 www.ti.com. SBAS407C – DECEMBER 2006 – REVISED AUGUST 2009 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling


    Original
    PDF PCM4220 SBAS407C 24-Bit, 216kHz 216kHz 24-bit 123dB 20kHz 121dB NE553

    10MW

    Abstract: OPA227 PCM4222 T520 TQFP-48 TQFP-64
    Text: BurrĆBrown Products from Texas Instruments PC M4 222 PCM4222 SBAS399A – OCTOBER 2006 – REVISED MARCH 2007 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter FEATURES • • • • • • Supports Linear PCM, 1-Bit Direct Stream


    Original
    PDF PCM4222 SBAS399A 24-Bit, 216kHz 216kHz 144MHz 124dB 10MW OPA227 PCM4222 T520 TQFP-48 TQFP-64

    Untitled

    Abstract: No abstract text available
    Text: PCM4220 PC M4 220 www.ti.com. SBAS407C – DECEMBER 2006 – REVISED AUGUST 2009 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling


    Original
    PDF PCM4220 SBAS407C 24-Bit, 216kHz 216kHz 24-bit 123dB 20kHz 121dB

    4392 ic equivalent

    Abstract: OPA1632 PCM sampling SRC4382 10MW OPA227 PCM4222 T520 TQFP-48 TQFP-64
    Text: BurrĆBrown Products from Texas Instruments PC M4 222 PCM4222 SBAS399A – OCTOBER 2006 – REVISED MARCH 2007 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter FEATURES • • • • • • Supports Linear PCM, 1-Bit Direct Stream


    Original
    PDF PCM4222 SBAS399A 24-Bit, 216kHz 216kHz 144MHz 124dB 4392 ic equivalent OPA1632 PCM sampling SRC4382 10MW OPA227 PCM4222 T520 TQFP-48 TQFP-64

    Untitled

    Abstract: No abstract text available
    Text: BurrĆBrown Products from Texas Instruments PC M4 222 PCM4222 SBAS399A – OCTOBER 2006 – REVISED MARCH 2007 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter FEATURES • • • • • • Supports Linear PCM, 1-Bit Direct Stream


    Original
    PDF PCM4222 SBAS399A 24-Bit, 216kHz 216kHz 144MHz 124dB 20kHz 122dBpplication

    Untitled

    Abstract: No abstract text available
    Text: BurrĆBrown Products from Texas Instruments PC M4 220 PCM4220 SBAS407A – DECEMBER 2006 – REVISED MAY 2007 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter FEATURES • • • • • • Supports Linear PCM Output Data


    Original
    PDF PCM4220 SBAS407A 24-Bit, 216kHz 24-bit 123dB 20kHz 121dB

    TRANSFORMER bck

    Abstract: SC939-06LF SC939-06 XLR connector combo SN74LVC1G125DBVRG4 TRANSFORMER bck 03 transformer bck 28 SN74LVC1G125DBV opa1632 video modulator 20pin
    Text: User's Guide SBAU124 – December 2006 PCM4222EVM User's Guide This document serves as a reference for the PCM4222EVM evaluation module. When used in conjunction with commonly available audio test equipment, the PCM4222EVM provides a complete environment for evaluating the functionality and performance of


    Original
    PDF SBAU124 PCM4222EVM PCM4222 PCM4220 TRANSFORMER bck SC939-06LF SC939-06 XLR connector combo SN74LVC1G125DBVRG4 TRANSFORMER bck 03 transformer bck 28 SN74LVC1G125DBV opa1632 video modulator 20pin

    Untitled

    Abstract: No abstract text available
    Text: PCM4220 PC M4 220 www.ti.com. SBAS407C – DECEMBER 2006 – REVISED AUGUST 2009 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling


    Original
    PDF PCM4220 SBAS407C 24-Bit, 216kHz 216kHz 24-bit 123dB 20kHz 121dB

    IEC60958-3

    Abstract: 4392 ic equivalent 10MW OPA227 PCM4220 SN74LVC1G125 T520 TQFP-48
    Text: BurrĆBrown Products from Texas Instruments PCM4220 PC M4 220 SBAS407B – DECEMBER 2006 – REVISED OCTOBER 2007 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter FEATURES 1 • Supports Linear PCM Output Data


    Original
    PDF PCM4220 SBAS407B 24-Bit, 216kHz 216kHz 24-bit 123dB 20kHz 121dB 20kHz IEC60958-3 4392 ic equivalent 10MW OPA227 PCM4220 SN74LVC1G125 T520 TQFP-48

    ne5534a

    Abstract: PCM422
    Text: BurrĆBrown Products from Texas Instruments PC M4 220 PCM4220 SBAS407A – DECEMBER 2006 – REVISED MAY 2007 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter FEATURES • • • • • • Supports Linear PCM Output Data


    Original
    PDF PCM4220 SBAS407A 24-Bit, 216kHz 24-bit 123dB 20kHz 121dB ne5534a PCM422

    Untitled

    Abstract: No abstract text available
    Text: BurrĆBrown Products from Texas Instruments PC M4 222 PCM4222 SBAS399 – OCTOBER 2006 FEATURES • • • • • • • Supports Linear PCM, One-Bit Direct Stream Digital DSD , and Multi-Bit Modulator Output Data – Supports PCM Output Sampling Rates from


    Original
    PDF PCM4222 SBAS399 24-Bit, 216kHz 216kHz 144MHz 124dB 20kHz 122dB

    4392 ic equivalent

    Abstract: 10MW OPA227 PCM4220 SN74LVC1G125 T520 TQFP-48
    Text: PCM4220 PC M4 220 www.ti.com. SBAS407C – DECEMBER 2006 – REVISED AUGUST 2009 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling


    Original
    PDF PCM4220 SBAS407C 24-Bit, 216kHz 216kHz 24-bit 123dB 20kHz 121dB 4392 ic equivalent 10MW OPA227 PCM4220 SN74LVC1G125 T520 TQFP-48

    Untitled

    Abstract: No abstract text available
    Text: BurrĆBrown Products from Texas Instruments PC M4 222 PCM4222 SBAS399A – OCTOBER 2006 – REVISED MARCH 2007 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter FEATURES • • • • • • Supports Linear PCM, 1-Bit Direct Stream


    Original
    PDF PCM4222 SBAS399A 24-Bit, 216kHz 216kHz 144MHz

    Untitled

    Abstract: No abstract text available
    Text: BurrĆBrown Products from Texas Instruments PC M4 222 PCM4222 SBAS399A – OCTOBER 2006 – REVISED MARCH 2007 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter FEATURES • • • • • • Supports Linear PCM, 1-Bit Direct Stream


    Original
    PDF PCM4222 SBAS399A 24-Bit, 216kHz 216kHz 144MHz

    4392 ic equivalent

    Abstract: 10MW OPA227 PCM4222 T520 TQFP-48 TQFP-64
    Text: BurrĆBrown Products from Texas Instruments PC M4 222 PCM4222 SBAS399A – OCTOBER 2006 – REVISED MARCH 2007 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter FEATURES • • • • • • Supports Linear PCM, 1-Bit Direct Stream


    Original
    PDF PCM4222 SBAS399A 24-Bit, 216kHz 216kHz 144MHz 124dB 4392 ic equivalent 10MW OPA227 PCM4222 T520 TQFP-48 TQFP-64

    Untitled

    Abstract: No abstract text available
    Text: PCM4220 PC M4 220 www.ti.com. SBAS407C – DECEMBER 2006 – REVISED AUGUST 2009 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling


    Original
    PDF PCM4220 SBAS407C 24-Bit, 216kHz 216kHz 24-bit 123dB 20kHz 121dB

    SYS-2722

    Abstract: schematic Class D 10KW audio amplifier
    Text: BurrĆBrown Products from Texas Instruments PC M4 222 PCM4222 SBAS399A – OCTOBER 2006 – REVISED MARCH 2007 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter FEATURES • • • • • • Supports Linear PCM, 1-Bit Direct Stream


    Original
    PDF PCM4222 SBAS399A 24-Bit, 216kHz 216kHz 144MHz 124dB 20kHz 122dBi SYS-2722 schematic Class D 10KW audio amplifier

    Untitled

    Abstract: No abstract text available
    Text: PCM4220 PC M4 220 www.ti.com. SBAS407C – DECEMBER 2006 – REVISED AUGUST 2009 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling


    Original
    PDF PCM4220 SBAS407C 24-Bit, 216kHz 216kHz 24-bit 123dB 20kHz 121dB