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ML4632CS 数据表(PDF) 2 Page - Micro Linear Corporation

部件名 ML4632CS
功能描述  Fiber Optic LED Driver
PDF  8 Pages
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制造商  MICRO-LINEAR [Micro Linear Corporation]
网页  http://www.microlinear.com
标志 MICRO-LINEAR - Micro Linear Corporation

ML4632CS 数据表(HTML) 2 Page - Micro Linear Corporation

  ML4632CS Datasheet HTML 1Page - Micro Linear Corporation ML4632CS Datasheet HTML 2Page - Micro Linear Corporation ML4632CS Datasheet HTML 3Page - Micro Linear Corporation ML4632CS Datasheet HTML 4Page - Micro Linear Corporation ML4632CS Datasheet HTML 5Page - Micro Linear Corporation ML4632CS Datasheet HTML 6Page - Micro Linear Corporation ML4632CS Datasheet HTML 7Page - Micro Linear Corporation ML4632CS Datasheet HTML 8Page - Micro Linear Corporation  
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ML4632
2
PIN CONFIGURATION
NAME
FUNCTION
ECLN
Negative ECL data input. Tie to VBIAS for
single ended ECL operation or when ECLP is
used as an enable. Tie to ground during TTL
only operation.
VBIAS
BIAS voltage for single ended ECL operation.
LED
Fiber optic LED drive pin. Connect the LED
between this pin and VCC.
GND
Negative power supply. The pin should be
tied to the grounded side of RTSET to improve
output accuracy and avoid a ground loop.
RTSET
Output current programming pin. Connect a
resistor of value VDRV/ILED from this pin to
ground to set the high LED output current.
RPK
Peaking circuit bias pin. Connect a resistor of
value VDRV/IPEAK from this pin to ground
when using the peaking circuit. Leave open
circuited when peaking is not used.
PEAK
Peaking circuit output pin. When using
peaking, connect this pin to VCC through a
resistor of value RRPK. Then connect a
capacitor from this pin to the LED cathode.
When peaking is not used, open circuit RPK.
PIN DESCRIPTION
NAME
FUNCTION
VCC
Positive power supply. +5 volts.
IOFF
Connect a resistor from this pin to VCC to
increase the off current to the LED, i.e. 4.3K
Ω
for 1mA. With this pin open, the default IOFF
current is between 0.5–1.0mA.
VREF
A constant 1.2V reference output used to set
up DRV.
DRV
A DC input that sets the positive swing on
RTSET and the high level output current to
the LED.
PTAT
Proportional to Absolute Temperature. A 1.0V
reference at 25
°C that moves proportional to
absolute temperature, also used to set up
DRV. (See figure 1)
TTL
TTL data input. Can also be used as an enable
during ECL operation. TTL = High (enabled),
TTL = Low (disabled).
ECLP
Positive ECL data input controls signal to the
LED. Tie to VBIAS during TTL only operation
or use as an enable.
ECLP
TTL
PTAT
DRV
VREF
IOFF
VCC
ECLN
VBIAS
LED
GND
RTSET
RPK
PEAK
14
13
12
11
10
9
8
1
2
3
4
5
6
7
TOP VIEW
ML4632
14-Pin PDIP (P14)
ML4632
16-Pin Wide SOIC (S16W)
TOP VIEW
ECLN
VBIAS
LED
GND
RTSET
RPK
PEAK
NC
ECLP
TTL
PTAT
DRV
VREF
IOFF
VCC
NC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9



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