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FEATURES
APPLICATIONS
TLV320AIC20, TLV320AIC21
TLV320AIC24, TLV320AIC25
TLV320AIC20K, TLV320AIC24K
SLAS363D – MARCH 2002 – REVISED APRIL 2005
Low-Power, Highly-Integrated, Programmable
16-Bit, 26-KSPS, Dual-Channel CODEC
• Differential and Single-Ended Analog
Input/Output
• Stereo 16-Bit Oversampling Sigma-Delta A/D
Converter • Built-In Analog Functions:
• Stereo 16-Bit Oversampling Sigma-Delta D/A – Analog and Digital Sidetone
Converter
– Antialiasing Filter (AAF)
• Support Maximum Master Clock of 100 MHz to
– Programmable Input and Output Gain
Allow DSPs Output Clock to be Used as a
Control (PGA)
Master Clock
– Microphone/Handset/Headset Amplifiers
• Selectable FIR/IIR Filter With Bypassing
– AIC20/21/20K Have a Built-In 8- Ω Speaker
Option
Driver
• Programmable Sampling Rate up to:
– Power Management With Hardware/Software
– Max 26 Ksps With On-Chip IIR/FIR Filter
Power-Down Modes 30 µW
– Max 104 Ksps With IIR/FIR Bypassed
• Separate Software Control for ADC and DAC
• On-Chip FIR Produced 84-dB SNR for ADC Power Down
and 92-dB SNR for DAC over 13-Khz BW
• Fully Compatible With Common TMS320
®
DSP
• Smart Time Division Multiplexed ( SMARTDM
®
) Family and Microcontroller Power Supplies
Serial Port
– 1.65-V - 1.95-V Digital Core Power
– Glueless 4-Wire Interface to DSP
– 1.1-V - 3.6-V Digital I/O
– Automatic Cascade Detection (ACD)
– 2.7-V - 3.6-V Analog
Self-Generates Master/Slave Device
• Internal Reference Voltage (V
ref
)
Addresses
• 2s Complement Data Format
– Programming Mode to Allow On-The-Fly
• Test Mode Which Includes Digital Loopback
Reconfiguration
and Analog Loopback
– Continuous Data Transfer Mode to Minimize
Bit Clock Speed
– Support Different Sampling Rate for Each
• Wireless Accessories
Device
• Hands-Free Car Kits
– Turbo Mode to Maximize Bit Clock For
• VOIP
Faster Data Transfer and Allow Multiple
• Cable Modem
Serial Devices to Share the Same Bus
• Speech Processing
– Allows up to Eight Devices to be Connected
to a Single Serial Port
• Host port
– 2-Wire Interface
– Selectable I
2
C or S
2
C
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SMARTDM, TMS320, TMS320C5000, TMS320C6000 are registered trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2002–2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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