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參數(shù)資料
| 型號： | XRT5683A |
| 廠商： | Exar Corporation |
| 英文描述： | PCM Line Interface Chip |
| 中文描述： | 接口芯片的PCM線路 |
| 文件頁數(shù)： | 4/12頁 |
| 文件大小： | 110K |
| 代理商： | XRT5683A |
XR-T5683A
4
Rev. 2.01
ELECTRICAL
CHARACTERISTICS (CONT’D)
Parameters
Min.
Typ.
Max.
Unit
Conditions
AC Electrical Characteristics (Cont’d)
Transmitter Section
Pulse Width at 8.448MHz
53
65
ns
Measured at Pin 13 & 15, See
Figure 6
Output Rise Time
12
25
ns
See Figure 5
Output Fall Time
12
25
ns
See Figure 5
Output Pulse Imbalance
2.5
ns
At 50% Output Level
Specifications are subject to change without notice
Notes
Bold face parameters
are covered by production test and guaranteed over operating temperature range.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage
+20V
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature
-65
°
C to +150
°
C
. . . . . . . . . . . . . .
SYSTEM DESCRIPTION
The incoming bipolar PCM signal which is attenuated and
distorted by the cable is applied to the threshold
comparator and the peak detector. The peak detector
generates a DC reference for the threshold comparator
for data and clock extraction. An external tank circuit
tuned to the appropriate frequency is added for the later
operation. The clock signal, data (+) and data (-) all go
through a similar level shifter to be converted into TTL
level to be compatible for digital processing.
In the transmit direction, the output drivers consist of two
identical TTL inputs with open collector output stages.
The maximum low level current these output stages can
sink is 40mA. With full width data (NRZ) applied to the
inputs together with a synchronized clock, the output will
generate a bipolar signal when driving a center-tapped
transformer. A block diagram of the XR-T5683A is shown
in Figure 1
The clock recovery uses an external tank circuit. The
receive data will create an excitation for the tank circuitry
which in turn will create a recovered, received clock
(RCLK).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XR-T5683A | PCM Line Interface Chip |
| XR-T5683 | () |
| XR-T56L22AD | Low Power Repeater/Receiver |
| XR-T56L22AN | Low Power Repeater/Receiver |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR-T5683A | 制造商:EXAR 制造商全稱:EXAR 功能描述:PCM Line Interface Chip |
| XR-T5683AID | 制造商:EXAR 制造商全稱:EXAR 功能描述:PCM Line Interface Chip |
| XRT5683AID-F | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 5V 8.448Mbps temp -45 to 85C RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT5683AID-F | 制造商:Exar Corporation 功能描述:T1/E1 LIU IC |
| XRT5683AIDTR-F | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
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