參數(shù)資料
型號(hào)： T7536
廠商： Lineage Power
元件分類： Codec
英文描述： 16-Channel Programmable Codec Chip Set(十六通道可編程編解碼器芯片組)
中文描述： 16通道可編程解碼器芯片組（十六通道可編程編解碼器芯片組）
文件頁(yè)數(shù)： 5/44頁(yè)
文件大小： 772K
代理商： T7536
Lucent Technologies Inc.
5
Data Sheet
February 1999
Codec Chip Set
T7531A/T7536 16-Channel Programmable
General Description
(continued)
T7531A Description
As shown in Figure 4, the
T7531A contains a digital signal processor (DSP) engine surrounded by a customized
input/output frame. The I/O frame performs the
μ
-law or A-law conversion as well as the decimation and interpola-
tion functions needed to interface the sigma-delta bit streams to the digital signal processor engine. The sigma-
delta converters operate at a 1.024 MHz sample rate, while the signal processor operates at 16 ksamples/s. A key
function of the I/O frame is to control the timing of the digital data going to the signal processor so that group delay
is minimized.
The I/O frame also contains an integrated phase-locked loop which synthesizes all the required internal clocks for
the chip set.
The microcontroller interface is used to download the gain and balance network settings, powerup/powerdown
commands, time-slot assignments, digital loopback settings, and commands for the T7536 octal chips. This chip is
packaged in a 68-pin PLCC.
5-3795.c (F)r03
Figure 4. T7531A Block Diagram
PLL
CLOCK
SYNTHESIZER
JTAG
SYSTEM PCM INTERFACE
DATA TRANSFER
μ
/A-LAW CONVERTER
MICRO-
PROCESSOR
CONTROL
INTERFACE
DSP
ROM
DSP
RAM
DIGITAL
SIGNAL
PROCESSING
ENGINE
DECIMATOR
INTERPOLATOR
TSA
T7536 CONTROL INTERFACE
T7536 OVERSAMPLED INTERFACE
UPCK
UPDI
UPDO
TSTCLK
V
DD
V
SS
HDS
UPCS
HIGHZB
RSTB
T_SYNC
TEST
OSDX/R[3:0]
O
O
C
C
C
C
T
T
T
F
S
T
F
F
F
D
C
S
S
S
S
S
相關(guān)PDF資料
PDF描述
T7531A 16-Channel Programmable Codec Chip Set(十六通道可編程編解碼器芯片組)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
T7570 制造商:AGERE 制造商全稱:AGERE 功能描述:T7570 Programmable PCM Codec with Hybrid-Balance Filter
T-758 制造商:RHOMBUS-IND 制造商全稱:Rhombus Industries Inc. 功能描述:Transformer
T-759 制造商:RHOMBUS-IND 制造商全稱:Rhombus Industries Inc. 功能描述:SCHEMATIC DIAGRAM
T75A 制造商:EGS Appleton 功能描述:Exact Equal/ 1-5 Days
T75F-C 功能描述:非熱縮管和套管 SPIRAL WRAP 3/4 100’ RoHS:否 制造商:Panduit 產(chǎn)品:Cable Wraps 類型:Spiral 顏色:Black 材料:PP 內(nèi)徑:0.03 in 長(zhǎng)度:100 ft
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