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TLV320AD13A
3.3-V INTEGRATED ASYMMETRIC DIGITAL SUBSCRIBER LINE (ADSL)
INTEGRATED SERVICES DIGITAL NETWORK (ISDN) CODEC
SLWS109 – AUGUST 2000
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
Complete Discrete Multitone (DMT)-Based
Asymmetric Digital Subscriber Line (ADSL)
Coder/Decoder (Codec) Solution
D
Complies With ANSI Std T1.413, Issue 2
and ITU Std G.992.1
D
Supports up to 8-Mbit/s Downstream and
800-kbit/s Upstream Duplex
D
Integrated 14-Bit Converters for
Transmitter/Echo-Canceller/Receiver
(TX/EC/RX)
D
Integrated 12-Bit Digital-to-Analog
Converter (DAC) for Voltage-Controlled
Oscillator (VCXO) Control
D
Integrated TX/EC/RX Channel Filters
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Integrated TX/EC/RX Attenuation/Gain
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Integrated Voltage Reference
D
Selectable 2.2-Mega Samples Per Second
(MSPS) or 4.4-MSPS Parallel Data Transfer
Rate
D
Serial-Configuration Port
D
Eight General-Purpose (GP) Output
Terminals
D
Single 3.3-V ±10% Supply Operation
D
Hardware/Software Power Down
D
–40°C to 85°C Operation
D
Packaged in 100-Pin Plastic Quad Flatpack
description
The TLV320AD13A is a high-speed coder/decoder (codec) for remote terminal (RT)-side modems that supports
ADSL over integrated services digital network (ISDN) solution. The TLV320AD13A is a low-power device
composed of five major functional groups for transmit (TX), receive (RX), clock, reference, and host interface.
It is designed to work with the Texas Instruments (TI) TNETD2022D central office (CO)-side codec for ISDN.
The TX channel consists of a 138-kHz to 276-kHz digital bandpass filter, a 14-bit high-speed digital-to-analog
converter (DAC), a 276-kHz analog low-pass filter (LPF), a TX attenuator, and an echo-cancellation (EC)
channel. The RX channel consists of a 1.104-MHz digital LPF, a 1.104-MHz analog LPF, a frequency equalizer ,
and a programmable-gain amplifier (PGA). The clock circuit divides a 35.328-MHz frequency from an external
voltage-controlled oscillator (VCXO) down to the necessary frequencies used throughout the device. The
frequency of the external VCXO is controlled by a 12-bit onboard voltage-output DAC. An onboard reference
circuit generates a 1.5-V reference for the converters.
The device has a parallel port for data transfer and a serial port for control. The parallel port is 16 bits wide and
is reserved for moving data between the codec and a host transceiver such as the TI C6x DSP. Configuration
is done via a serial port. The device can be powered down via a dedicated pin, or through software control, to
reduce heat dissipation. Additionally, there is a general-purpose (GP) port consisting of eight output terminals
for control of external circuitry.
The TLV320AD13A codec is characterized for operation in the temperature range of –40°C to 85°C and is
available in a 100-pin PQFP (PZ) package.
Copyright 2000, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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.
TI is a trademark of Texas Instruments.