Micrel M9999-101204 6 October 2004 Pin Descriptions Pin Number Pin Name Pin Function 11 TXDISABLE Digital Input; Active High. The t" />
參數(shù)資料
型號(hào)： MIC3000BML TR
廠商： Micrel Inc
文件頁數(shù)： 54/58頁
文件大小： 0K
描述： IC TXRX OPTICAL MANAGEMENT 24MLF
標(biāo)準(zhǔn)包裝： 1,000
類型： 收發(fā)器
電源電壓： 3 V ~ 3.6 V
安裝類型： 表面貼裝
封裝/外殼： 24-VFQFN 裸露焊盤，24-MLF?
供應(yīng)商設(shè)備封裝： 24-MLF?（4x4）
包裝： 帶卷 (TR)
其它名稱： MIC3000BMLTR
MIC3000BMLTR-ND
MIC3000
Micrel
M9999-101204
6
October 2004
Pin Descriptions
Pin Number
Pin Name
Pin Function
11
TXDISABLE
Digital Input; Active High. The transmitter is disabled when this line is high or
the STXDIS bit is set. The state of this input is always reflected in the TXDIS
bit.
12
DATA
Digital I/O; Open-drain. Bi-directional serial data input/output.
13
CLK
Digital Input; Serial bit clock input.
14
VIN
If bit 4 (IE) in USRCTL register is set to 0 (default), this pin is configured as
analog input. If IE bit is set to 1, this pin is configured as open-drain output.
Analog Input: Multiplexed A/D input for monitoring supply voltage. 0V to
5.5V input range.
Open-drain output: outputs the internally generated interrupt signal /INT.
15
RSIN
Digital Input; Rate select input; ORed with rate select bit to determine the
state of the RSOUT pin. The state of this pin is always reflected in the RSEL
bit.
16
GNDD
Ground return for digital functions.
17
NC
No connection. This pin is used for test purposes and must be left uncon-
nected.
18
VDDD
Power supply input for digital functions.
19
RXLOS
Digital Output; Active-High/Open-Drain. Indicates the loss of the received
signal as indicated by a level of received optical power below the pro-
grammed RXLOS comparator threshold; may be wire-ORed with external
signals. Low indicates normal operation. The LOS bit reflects the state of
RXLOS whether driven by the MIC3000 or an external circuit.
20
RSOUT
Digital Output. Open-Drain. This output is controlled by the SRSEL bit ORed
with RSIN input and is open drain only.
21
COMP
Analog Output, compensation terminal. Connect a capacitor between this pin
and GNDA or VDDA with appropriate value to tune the APC loop time
constant to a desirable value.
22
VBIAS
Analog Output. Buffered DAC output capable of sourcing or sinking up to
10mA under control of the APC function to drive an external transistor for
laser diode D.C. bias. The output and feedback polarity are programmable to
accommodate either a NPN or an PNP transistor to drive a common anode
or common-cathode laser diode.
23
VMOD–
Analog Input. Inverting terminal of VMOD buffer op-amp. Connect to VMOD+
(gain = 1) or feedback resistors network to set a different gain
24
VMOD+
Analog Output. Buffered DAC output to set the modulation current on the
laser driver IC. Operates with either a 0– VREF or a (VDD–VREF) – VDD
output swing so as to generate either a ground-referenced or a VDD refer-
enced programmed voltage. A simple external circuit can be used to
generate a programmable current for those drivers that require a current
rather than a voltage input. See “Applications Information” section for more
details.
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