參數(shù)資料
型號: DS2176QN
廠商: Maxim Integrated Products
文件頁數(shù): 1/15頁
文件大?。?/td> 0K
描述: IC BUFFER RECEIVE T1 IND 28-PLCC
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 37
類型: 緩沖器
Tx/Rx類型: T1
延遲時間: 100ns
電容 - 輸入: 5pF
電源電壓: 4.5 V ~ 5.5 V
電流 - 電源: 10mA
安裝類型: 表面貼裝
封裝/外殼: 28-LCC(J 形引線)
供應商設備封裝: 28-PLCC(11.51x11.51)
包裝: 管件
1 of 15
091599
FEATURES
§ Synchronizes loop–timed and system–timed
T1 data streams
§ Two–frame buffer depth; slips occur on frame
boundaries
§ Output indicates when slip occurs
§ Buffer may be recentered externally
§ Ideal for 1.544 to 2.048 MHz rate conversion
§ Interfaces to parallel or serial backplanes
§ Extracts and buffers robbed–bit signaling
§ Inhibits signaling updates during alarm or slip
conditions
§ Integration feature “debounces” signaling
§ Slip–compensated output indicates when
signaling updates occur
§ Compatible with DS2180A T1 Transceiver
§ Surface mount package available, designated
DS2176Q
§
Industrial temperature range of –40°C to
+85°C available, designated DS2176N
PIN ASSIGNMENT
DESCRIPTION
The DS2176 is a low–power CMOS device specifically designed for synchronizing receive side loop–
timed T–carrier data streams with system side timing. The device has several flexible operating modes
which simplify interfacing incoming data to parallel and serial TDM backplanes. The device extracts,
buffers and integrates ABCD signaling; signaling updates are prohibited during alarm or slip conditions.
The buffer replaces extensive hardware in existing applications with one “skinny” 24–lead package.
Application areas include digital trunks, drop and insert equipment, transcoders, digital cross–connects
(DACS), private network equipment and PABX–to–computer interfaces such as DMI and CPI.
DS2176
T1 Receive Buffer
www.dalsemi.com
23
RCLK
A
C
D
SCHCLK
SM0
SM1
VSS
VDD
SCKLSEL
SYCLK
SSER
SLIP
SBIT8
SMSYNC
SIGFRZ
SFSYNC
ALN
FMS
S/P
1
2
3
4
5
6
7
8
9
10
11
12
24
22
21
20
19
18
17
16
15
14
13
RMSYN
RSER
B
SIGH
24-PIN 300 MIL DIP
28-PIN PLCC
A
B
NC
C
D
SSER
SLIP
SBIT8
NC
SMSYNC
SCHCLK
SIGFRZ
RSER
RCLK
RMSYNC
SIGH
VDD
SCKLSEL
SYSCLK
SM0
SM1
VSS
S/P
FMS
ALN
SFSYNC
25
24
23
22
21
20
19
5
6
7
8
9
10
11
4
3
2
1
28
27
26
12
13 14
15
16
17
18
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