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参数资料
| 型号： | HFBR-7924E |
| 元件分类： | 光收发 |
| 英文描述： | FIBER OPTIC TRANSCEIVER PARALLEL INTERFACE, 830-860nm, 2700Mbps(Tx), 2700Mbps(Rx), PANEL MOUNT |
| 文件页数： | 4/18页 |
| 文件大小： | 492K |
| 代理商： | HFBR-7924E |
12
Table 2. Transceiver Module Pad Description
Symbol
Functional Description
Din Ch 0 - 3 +/- through
Din Ch 0 - 3 +/-
Transmitter differential data inputs for channels 0 through 3: Data inputs are CML compatible.
TX_DIS
Transmitter Disable: LVCMOS Input (Internal pull down). Control input used to turn off the transmitter
optical outputs. High Active. VCSEL array is off when High. Normal operation is enabled when Low.
TX_EN
Transmitter Enable: LVCMOS Input (Internal pull up). Control input used to enable the transmitter
optical outputs. High Active. VCSEL array is off when Low. Normal operation is enabled when High.
TX_FAULT*
Transmitter Fault: LVCMOS Output. Transmitter status output indicating an eye-safety over-current
condition for any VCSEL, an out of temperature range condition and/or a calibration data corruption
detection. High output state indicates normal operation. Low output state indicates the fault
condition. An asserted FAULT* condition disables the VCSEL array and is cleared by TX_RESET*.
TX_RESET*
Transmitter Reset: LVCMOS Input (Internal pull up). Control input used to reset the transmitter logic
functions. Active Low. VCSEL array is off when Low. Normal operation is enabled when High.
VEE_TX
Transmitter signal common. All transmitter voltages are referenced to this potential unless otherwise
stated. Directly connect these pads to the PC board transmitter ground plane.
VCC_TX
Transmitter power supply.
Dout Ch 0 - 3 +/- through
Dout Ch 0 - 3 +/-
Receiver differential data outputs for channels 0 through 3: Data outputs are CML compatible. Data
outputs are squelched for de-asserted Signal Detect.
SD
Receiver Signal Detect: LVCMOS Output. Receiver status output indicating valid signal in all
channels. High output state (asserted) indicates valid optical inputs to each and every channel. Low
output state (de-asserted) indicates loss of signal at any of the monitored receiver inputs. All
channels are monitored.
DNC
Do NOT Connect. Do not connect to any electrical potential.
VEE_RX
Receiver signal common. All receiver voltages are referenced to this potential unless otherwise
stated. Directly connect these pads to the PC board receiver ground plane.
VCCA_RX
Pin preamplifier power supply rail.
VCCB_RX
Receiver quantizer power supply rail.
VCCA_RX and VCCB_RX can be connected to the same power supply. However, to insure maximum receiver sensitivity and minimize the impact of
noise from the power supply, it is recommended to keep the power supplies separate and to use the recommended power supply filtering network
on VCCA_RX (see Figure 8).
Module Case
Transceiver Case Common. Transceiver Case Common incorporates all exposed conductive surfaces
and is electrically isolated from Transmitter Signal Common and Receiver Signal Common.
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