REV. 1.0.2 BITS (BUILDING INTEGRATED TIMING SUPPLY) CLOCK EXTRACTOR 12 1.3 2048 kHz NRZ Mode In this mode, XRT85L61 receives 2048 k" />
參數(shù)資料
型號: XRT85L61IGTR-F
廠商: Exar Corporation
文件頁數(shù): 5/19頁
文件大?。?/td> 0K
描述: IC BITS CLOCK EXTRACTOR 28STSSOP
標(biāo)準(zhǔn)包裝: 2,500
功能: BITS 時鐘提取器
接口: E1,T1
電路數(shù): 1
電源電壓: 3.14 V ~ 3.47 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 28-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 28-TSSOP
包裝: 帶卷 (TR)
包括: 無晶數(shù)字式抖動衰減器
xr
XRT85L61
REV. 1.0.2
BITS (BUILDING INTEGRATED TIMING SUPPLY) CLOCK EXTRACTOR
12
1.3
2048 kHz NRZ Mode
In this mode, XRT85L61 receives 2048 kbps synchronization signal as shown in Figure 7.
FIGURE 7. E1 CLOCK SIGNAL WAVE SHAPE - G.703
TABLE 10: G.703 2048 KHZ CLOCK INTERFACE
PULSE
INTERFACE
Frequency
2048 kHz ± 50 ppm
Pulse Shape
The signal must conform with the mask.
The value V corresponds to maximum peak value
The value V1 corresponds to minimum peak value
Pair(s) in each direction
Coaxial pair
Symmetrical pair
Test Load Impedance
75
Resistive
120
Resistive
Maximum peak value (Vop)
1.5
1.9
Minimum peak value (Vop)
0.75
1.0
Maximum jitter at an output port
0.05 UI peak to peak measured within the frequency range f1 = 20 Hz
to f4 = 100 kHz
NOTE: This value is valid for network timing distribution equipment.
Other values may be specified for timing output ports of digital
links carrying the network timing.
T
30
T
30
T
30
T
30
T
30
T
30
T
4
T
4
T
4
T
4
T
+ V
– V
0
1
T 1 81 89 00-92
S haded are a in w h ic h
s igna l s hou ld b e
m ono tonic
T A v erage perio d of
s y n c h ro niz ing s igna l
F IG U R E 21/G .703
Wa v e s h a p e at an o u tp ut p ort
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