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參數(shù)資料
| 型號： | MT9174AP |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | ISO2-CMOS ST-BUS⑩ FAMILY Digital Network Interface Circuit with Receive Sync Marker Bit |
| 中文描述： | ISO2 -意法半導(dǎo)體的CMOS與接收同步標(biāo)記總線⑩家庭數(shù)字網(wǎng)絡(luò)接口電路位 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 33K |
| 代理商： | MT9174AP |
9-155
Features
Receive sync output pulse
Full duplex transmission over a single twisted
pair
Selectable 80 or 160 kbit/s line rate
Adaptive echo cancellation
Up to 4 km loop reach
ISDN compatible (2B+D) data format
Transparent modem capability
Frame synchronization and clock extraction
MITEL ST-BUS compatible
Low power (typically 50 mW), single 5V supply
Applications
T
DD
Digital PCS (DECT, CT2, PHS) base
stations requiring cell synchronization
Digital subscriber lines
High speed data transmission over twisted
wires
Digital PABX line cards and telephone sets
80 or 160 kbit/s single chip modem
Figure 1 - Functional Block Diagram
DSTi/Di
CDSTi/
CDi
F0/CLD
C4/TCK
F0o/RCK
MS0
MS1
MS2
RegC
DSTo/Do
CDSTo/
CDo
RxSB
Transmit
Interface
Prescrambler
Scrambler
Control
Register
Transmit/
Clock
Receive
Timing &
Control
Status
Transmit
Timing
Master Clock
Phase Locked
Sync Detect
Receive
DPLL
Receive
Interface
De
-
Prescrambler
Descrambler
Differentially
Encoded Biphase
Receiver
Differentially
Encoded
Biphase
Transmitter
Transmit
Filter &
Line Driver
Receive
Filter
-1
+2
MUX
Address
Echo Canceller
Error
Signal
Echo Estimate
—
V
Bias
V
DD
V
SS
V
Bias
V
Ref
L
OUT
L
OUT
DIS
Precan
L
IN
OSC2
OSC1
+
∑
ISSUE 1
May 1995
Description
The
MT9174 is identical to the MT9172 in all
respects except for the addition of one feature. The
MT9174 includes a digital output pin indicating the
temporal position of the "SYNC" bit of the biphase
transmission. This feature is especially useful for
systems such as PCS wireless base stations
applications requiring close synchronization between
microcells.
The MT9174 is fabricated in Mitel’s ISO
2
-CMOS
process.
Ordering Information
MT9174AE
MT9174AN
MT9174AP
24 Pin Plastic DIP
24 Pin SSOP
28 Pin PLCC
-40°C to
+
85°C
MT9174
Digital Network Interface Circuit
with Receive Sync Marker Bit
ISO
2
-CMOS ST-BUS
FAMILY
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