SPT7936 View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
View to exact match
SPT7936 Datasheet PDF : 8 Pages
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PIN ASSIGNMENTS
GND 1
CLK
2
GND 3
VDD2
4
VDD2
5
VDD2
6
VDD1
7
VDD1
8
VDD1
9
VREF–
10
VREF+
11
33 D10
32 D11
31 OR
30 GND
29 GND
28 GND
27
GND
26 GND
25 GND
24 GND
23 GND
PIN FUNCTIONS
Name
Function
VIN+, VIN-
VREF+, VREF-
Differential input signal pins.
Reference input pins. Bypass with
100 nF capacitors close to the pins.
See Application Information.
EXTREF
Digital input: Reference select.
EXTREF=1: Use external refer-
ence. Internal reference powered
down. EXTREF=0: Internal refer-
ence is used.
BIAS0, BIAS1
Digital inputs for maximum sam-
pling rate programming.
BIAS1=0, BIAS0=0: Sleep mode (power save)
BIAS1=0, BIAS0=1: Max. 5 MHz sampling
BIAS1=1, BIAS0=0: Max. 20 MHz sampling
(Default by internal pull up/pull down)
BIAS1=1, BIAS0=1: Max. 28 MHz sampling
CLOCK
Clock input
CM
Common mode voltage output.
(1.5 V typ)
D11-DØ
Digital outputs ( MSB to LSB)
OR
Out-of-Range digital output. OR=1
indicates input out of range
VDD1
VDD2
GND
Analog power supply
Digital power supply
Analog Ground
N/C
No Connect Pins. Recommended
to connect to analog ground.
BGAP
Internal Bandgap Reference
Output: Bypass to ground for
normal operation.
ORDERING INFORMATION
PART NUMBER
SPT7936SCT
TEMPERATURE RANGE
0 to +70 °C
PACKAGE TYPE
44L TQFP
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO
IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF
ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF
OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE
EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems which, (a) are
intended for surgical implant into the body, or (b) support or sustain life,
and whose failure to perform, when properly used in accordance with
instructions for use provided in the labeling, can be reasonably expected
to result in a significant injury to the user.
2. A critical component is any component of a life support device or system
whose failure to perform can be reasonably expected to cause the failure
of the life support device or system, or to affect its safety or effectiveness.
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© Copyright 2002 Fairchild Semiconductor Corporation
SPT7936
8
8/1/00
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