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SSM2602CPZ-R2 Datasheet

  • SSM2602CPZ-R2

  • Low Power Audio Codec

  • 486.80KB

  • 32頁

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Low Power Audio Codec
SSM2602
FEATURES
Stereo, 24-bit analog-to-digital and digital-to-analog converters
DAC SNR: 100 dB (A-weighted), THD: 鈭?0 dB at 48 kHz, 3.3 V
ADC SNR: 90 dB (A-weighted), THD: 鈭?0 dB at 48 kHz, 3.3 V
Highly efficient headphone amplifier
Stereo line input and monaural microphone input
Low power
7 mW stereo playback (1.8 V/1.5 V supplies)
14 mW record and playback (1.8 V/1.5 V supplies)
Low supply voltages
Analog: 1.8 V to 3.6 V
Digital core: 1.5 V to 3.6 V
Digital I/O: 1.8 V to 3.6 V
256/384 oversampling rate in normal mode; 250/272 over-
sampling rate in USB mode
Audio sampling rates: 8 kHz, 11.025 kHz, 12 kHz, 16 kHz,
22.05 kHz, 24 kHz, 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz,
and 96 kHz
28-lead, 5 mm 脳 5 mm LFCSP (QFN) package
GENERAL DESCRIPTION
The SSM2602 is a low power, high quality stereo audio codec
for portable digital audio applications with one set of stereo
programmable gain amplifier (PGA) line inputs and one
monaural microphone input. It features two 24-bit analog-to-
digital converter (ADC) channels and two 24-bit digital-to-
analog (DAC) converter channels.
The SSM2602 can operate as a master or a slave. It supports
various master clock frequencies, including 12 MHz or 24 MHz
for USB devices; standard 256 f
S
or 384 f
S
based rates, such as
12.288 MHz and 24.576 MHz; and many common audio sampling
rates, such as 96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz, 32 kHz, 24 kHz,
22.05 kHz, 16 kHz, 12 kHz, 11.025 kHz, and 8 kHz.
The SSM2602 can operate at power supplies as low as 1.8 V for
the analog circuitry and as low as 1.5 V for the digital circuitry.
The maximum voltage supply is 3.6 V for all supplies.
The SSM2602 software-programmable stereo output options
provide the user with many application possibilities because the
device can be used as a headphone driver or as a speaker driver.
Its volume control functions provide a large range of gain
control of the audio signal.
The SSM2602 is specified over the industrial temperature range
of 鈭?0擄C to +85擄C. It is available in a 28-lead, 5 mm 脳 5 mm
lead frame chip scale package (LFCSP).
APPLICATIONS
Mobile phones
MP3 players
Portable gaming
Portable electronics
Educational toys
AVDD
MICBIAS
鈥?4.5dB TO +33dB,
1.5dB STEP
FUNCTIONAL BLOCK DIAGRAM
VMID AGND
DBVDD DGND DCVDD
HPVDD PGND
SSM2602
BYPASS
SIDETONE
6dB TO 15dB/MUTE 3dB STEP
鈥?3dB TO +6dB,
1dB STEP
RHPOUT
RLINEIN
MUX
ADC
DAC
ROUT
MICIN
0dB/20dB/
40dB BOOST
DIGITAL
PROCESSOR
LOUT
MUX
ADC
DAC
LHPOUT
鈥?4.5dB TO +33dB,
1.5dB STEP
LLINEIN
6dB TO 15dB/MUTE 3dB STEP
鈥?3dB TO +6dB,
1dB STEP
SIDETONE
BYPASS
CLK
DIGITAL AUDIO INTERFACE
CONTROL INTERFACE
MCLK/ XTO CLKOUT
XTI
PBDAT RECDAT BCLK PBLRC RECLRC MODE CSB
SDIN SCLK
Figure 1.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
漏2008 Analog Devices, Inc. All rights reserved.
06858-001

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