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VCA8500_0803 Datasheet(PDF) 5 Page - Texas Instruments

Part # VCA8500_0803
Description  8-Channel, Ultralow-Power, Variable Gain Amplifier with Low-Noise Pre-Amp
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

VCA8500_0803 Datasheet(HTML) 5 Page - Texas Instruments

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VCA8500
SBOS390A – JANUARY 2008 – REVISED MARCH 2008
ELECTRICAL CHARACTERISTICS (continued)
All specifications at TA = +25°C, AVDD2 = 5.0V, AVDD1 = DVDD = 3.3V; single-ended, ac-coupled (1µF) input configuration to the preamp
(LNA), fIN = 5MHz, VCNTL = 1.0V, PG = 30dB, clamp disabled (CL = 1), LPF = 15MHz, and RLOAD = 1kΩ on each output to ground, unless
otherwise noted.
VCA8500
TEST
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
LEVEL(1)
DIGITAL INPUTS (SDI)
(PD, DIN, DOUT, CLK, RST)
VIH, high-level input voltage
2.0
VD
V
B
VIL, low-level input voltage
0
0.8
V
B
Input current
±10
µA
A
Clock frequency (fCLK)
10k
20M
Hz
B
Input resistance
1
M
C
Input capacitance
5
pF
C
POWER SUPPLY
Supply Voltages
AVDD1, DVDD
Operating
3.15
3.3
3.6
V
B
AVDD2
Operating
4.75
5
5.25
V
B
Supply Currents(4)
IAVDD1
TGC mode (D5 = 1)
145
156
mA
A
CW mode (D5 = 0)
78
84
mA
A
IDVDD
TGC, CW mode
1.5
3
mA
A
IAVDD2
TGC mode
8
10
mA
A
CW mode
54
59
mA
A
Power dissipation, total
All channels, TGC mode, no signal
522
570
mW
A
All channels, CW mode, no signal
533
575
mW
A
POWER-DOWN MODES
Standby Mode
PD (pin 49) = high
IAVDD1
18
mA
A
IDVDD
1.5
mA
A
IAVDD2
8
mA
A
Power dissipation
104
130
mW
A
Power-down response time
0.2
µs
C
Power-up response time(5)
PD to valid output (90% level)
50
µs
C
Shut-Down Mode
D2 (PWR) = high
IAVDD1
1.5
mA
A
IDVDD
1.5
mA
A
IAVDD2
2
mA
A
Power dissipation
19
35
mW
A
THERMAL CHARACTERISTICS
Temperature range
Ambient, operating
–40
+85
°C
Thermal resistance,
θ
JA
22.5
°C/W
Soldered pad; four-layer PCB
with thermal vias
Thermal resistance,
θ
JC
17.0
°C/W
(4)
Clamp enabled (D4 = 0).
(5)
See Figure 59 of the Typical Characteristics.
Copyright © 2008, Texas Instruments Incorporated
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