- 您現在的位置：買賣IC網 > PDF目錄369350 > 78P2253-IGT (Electronic Theatre Controls, Inc.) XTAL CER SMT 11X5 4PAD PDF資料下載
參數資料
| 型號： | 78P2253-IGT |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | XTAL CER SMT 11X5 4PAD |
| 中文描述： | 收發器 |
| 文件頁數： | 5/23頁 |
| 文件大小： | 107K |
| 代理商： | 78P2253-IGT |
78P2253
E4/STM-1/STS-3/OC-3
Transceiver
5
PIN DESCRIPTION
(continued)
REFERENCE CLOCK PINS
NAME
XTAL1
XTAL2
PIN
5
6
TYPE
A
DESCRIPTION
Crystal Pins. Connect as in Figure 1a.
CKIN
9
CI
Reference clock input. The crystal oscillator connections should be
left open.
CONTROL AND STATUS PINS
NAME
PIN
TYPE
DESCRIPTION
RLBACK
LLBACK
41
42
CI
CI
Loopback receiver output to transmitter input.
Loopback transmitter output to receiver input. Disabled when
HUB/
HOST
is low or RLBACK is high.
HUB/
HOST
2
CI
In HUB mode (input high) the transmit reference clock is derived from
the CKIN pin or the crystal oscillator. In HOST mode (input low) the
transmit reference clock is derived from the recovered receive clock.
CMI/
ECL
1
CI
Selects CMI (input high) or ECL (input low) modes.
E4/
SONET
64
CI
When high, E4 (139.264 Mbit/s) operation is selected. When low,
STM-1/STS-3/OC-3 (155.52Mbit/s) operation is selected.
8BIT/
$BIT
CI
Selects 8 bit parallel data when high and 4 bit parallel mode when
low. In serial mode this pin is ignored.
LOS
39
CO
High during a loss-of-signal condition.
ANALOG PINS
NAME
PIN
TYPE
DESCRIPTION
RFO
LF
46
44
A
A
External reference resistor.
PLL loop filter capacitor.
POWER SUPPLY PINS
It is recommended that all VCC pins be connected to a single power supply plane and all GND pins be connected
to a single ground plane.
NAME
VCC
PIN
43
TYPE
S
DESCRIPTION
Power Supply.
GND
4, 7, 21,
29, 45,
47, 48,
58, 61
S
Ground.
相關PDF資料 |
PDF描述 |
|---|---|
| 78P7200 | Line Interface Unit |
| 78P7200-IH | Line Interface Unit |
| 78P7200 | E3/DS3/STS-1 Transceiver |
| 78P7200L | E3/DS3/STS-1 Transceiver |
| 78P7200L-IGT | E3/DS3/STS-1 Transceiver |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 78P2254 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:OC-3 / STM-1 / STS-3 / E4 Transceivers |
| 78P2254-IGT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm |
| 78P2342-IGT | 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:2-port E3/DS3/STS-1 LIU with Jitter Attenuator |
| 78P2342-IGT/A07 | 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:2-port E3/DS3/STS-1 LIU with Jitter Attenuator |
| 78P2342-IGT/F | 制造商:Maxim Integrated Products 功能描述:LEAD FREE - Rail/Tube |
發布緊急采購，3分鐘左右您將得到回復。