參數(shù)資料
型號(hào): DS21554LN
廠商: DALLAS SEMICONDUCTOR
元件分類: Digital Transmission Interface
英文描述: DATACOM, PCM TRANSCEIVER, PQFP100
封裝: 14 X 14 MM, LQFP-100
文件頁(yè)數(shù): 25/117頁(yè)
文件大?。?/td> 698K
代理商: DS21554LN
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DS21354 & DS21554
15 of 117
PIN
SYMBOL
TYPE
DESCRIPTION
40
TCLKI
I
Transmit Clock Input
41
TCLKO
O
Transmit Clock Output
50
TDATA
I
Transmit Data
49
TESO
O
Transmit Elastic Store Output
14
TEST
I
Test
34
TLCLK
O
Transmit Link Clock
35
TLINK
I
Transmit Link Data
39
TNEGI
I
Transmit Negative Data Input
42
TNEGO
O
Transmit Negative Data Output
38
TPOSI
I
Transmit Positive Data Input
43
TPOSO
O
Transmit Positive Data Output
32
TRING
O
Transmit Analog Ring Output
47
TSER
I
Transmit Serial Data
48
TSIG
I
Transmit Signaling Input
52
TSSYNC
I
Transmit System Sync
37
TSYNC
I/O
Transmit Sync
51
TSYSCLK
I
Transmit System Clock
29
TTIP
O
Transmit Analog Tip Output
31
TVDD
Transmit Analog Positive Supply
30
TVSS
Transmit Analog Signal Ground
77
WR*(R/W*)
I
Write Input(Read/Write)
22
XTALD
O
Quartz Crystal Driver
4.1 PIN FUNCTION DESCRIPTION
4.1.1 Transmit Side Pins
Signal Name:
TCLK
Signal Description:
Transmit Clock
Signal Type:
Input
A 2.048 MHz primary clock. Used to clock data through the transmit side formatter.
Signal Name:
TSER
Signal Description:
Transmit Serial Data
Signal Type:
Input
Transmit NRZ serial data. Sampled on the falling edge of TCLK when the transmit side elastic store is
disabled. Sampled on the falling edge of TSYSCLK when the transmit side elastic store is enabled.
Signal Name:
TCHCLK
Signal Description:
Transmit Channel Clock
Signal Type:
Output
A 256 kHz clock which pulses high during the LSB of each channel. Synchronous with TCLK when the
transmit side elastic store is disabled. Synchronous with TSYSCLK when the transmit side elastic store is
enabled. Useful for parallel to serial conversion of channel data.
相關(guān)PDF資料
PDF描述
DS2155G DATACOM, FRAMER, PBGA100
DS21600SN PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO16
DS21600N PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDIP8
DS2155LN DATACOM, FRAMER, PQFP100
DS21602N PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDIP8
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