SPT7936 查看數據表（PDF） - Signal Processing Technologies
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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
ORDERING INFORMATION
PART NUMBER
SPT7936SCT
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-
Differential input signal pins.
VREF+, VREF-
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.
TEMPERATURE RANGE
0 to +70 °C
PACKAGE TYPE
44L TQFP
Signal Processing Technologies, Inc. reserves the right to change products and specifications without notice. Permission is hereby expressly
granted to copy this literature for informational purposes only. Copying this material for any other use is strictly prohibited.
WARNING - LIFE SUPPORT APPLICATIONS POLICY - SPT products should not be used within Life Support Systems without the specific
written consent of SPT. A Life Support System is a product or system intended to support or sustain life which, if it fails, can be reasonably
expected to result in significant personal injury or death.
Signal Processing Technologies believes that ultrasonic cleaning of its products may damage the wire bonding, leading to device
failure. It is therefore not recommended, and exposure of a device to such a process will void the product warranty.
SPT
8
SPT7936
8/1/00
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