TLV320VD30 Datasheet, PDF (1/21 Pages) Texas Instruments – VDSL CODEC

TLV320VD30
VDSL CODEC
D General-Purpose Analog Interface Circuit
for VDSL System
D 12 Bit, 22 MHz ADC and DAC
D Provides 11 MHz Bandwidth Performance
D Supports Central Office and Remote
Terminal Applications
D Excellent Power Management by
Enabling/Disabling Major Functional
Blocks When in Power Control Mode
D Remote Activation Feature With Selectable
Wake-Up Tone Frequency
D Integrated Equalizer to Partially
Compensate for the Roll Off in Twisted Pair
Telephone Cable
D Numerically Controlled Oscillator With
Resolution <1 ppm, Range of 250 ppm
Using External Crystal
SLWS086 – JUNE 1999
D 26 dB RFI Suppression
D Programmable Receive Amplifier Operating
From 0 dB to 20 dB, in Steps of 1 dB
D Programmable Transmitter Output Power
Level From –13 dBm to 11 dBm
D Enable/Disable of All Major Blocks During
Power Mode
D Digital Loopback Test Mode
D Internal Voltage References
D Serial Control Port
D Conversion Rate up to 22.08 MHz
D Selectable Offset Binary or 2s Complement
Data Format
D 3.3 V Operation
D 80-Pin PN Package
description
The TLV320VD30 is an analog front end (AFE) device for VDSL systems. The TLV320VD30 provides a
transmitter and a receiver. Both the transmitter and receiver have up to 11 MHz-bandwidth performance. The
device can be used for central office and remote VDSL applications. The transmitter consists of a 12-bit/22 MHz
DAC and a programmable line driver interface. The receiver consists of a 12-bit/22 MHz ADC, a programmable
gain amplifier, a compromise equalizer, and an RFI cancellation circuit. The device includes a tone detect circuit,
and a numerically controlled crystal oscillator.
The TLV320VD30 provides two parallel ports for fast data transfers and a serial port for device control. The
parallel ports are 12-pin ports with data transfer rates of up to 22 MHz per 12-bit word. One parallel port is
dedicated to DAC input, the other parallel port is dedicated to ADC output. The serial port supports both write
and read operations. The serial data transfer rate is 1.38 MHz per bit. Data is transferred in 16-bit words.
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.
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.
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Copyright © 1999, Texas Instruments Incorporated
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