SA637 Просмотр технического описания (PDF) - Philips Electronics
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SA637 Datasheet PDF : 11 Pages
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Philips Semiconductors RF Communications Products
Low-voltage digital IF receiver
Product specification
SA637
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
VCC Supply voltage
VIN
Voltage applied to any other pin
TSTG Storage temperature range
TA
Operating ambient temperature range
NOTE: Thermal impedance (θJA) = 117°C/W
RATING
-0.3 to +6.0
-0.3 to (VCC + 0.3)
-65 to +150
-40 to +85
UNITS
V
V
°C
°C
DC ELECTRICAL CHARACTERISTICS
VCC = +3V, TA = 25°C; unless otherwise stated.
SYMBOL
PARAMETER
VCC
Power supply voltage range
ICC
DC current drain
Standby
Input current
Input level
tON
Power up time
tOFF
Power down time
TEST CONDITIONS
Pin 9 = HIGH or OPEN
VCC = 4.7V
Pin 9 = LOW
Pin 9 = LOW
Pin 9 = HIGH
Pin 9 = LOW
Pin 9 = HIGH
RSSI valid (10% to 90%)
RSSI invalid (90% to 10%)
MIN
2.7
-10
-10
0
0.7VCC
LIMITS
TYP
3.8
4.4
0.11
10
5
MAX
5.5
4.5
5.5
0.5
10
10
0.3VCC
VCC
UNITS
V
mA
mA
mA
µA
µA
µA
µA
µs
µs
AC ELECTRICAL CHARACTERISTICS
TA = 25°C; VCC = +3V, unless otherwise stated. RF frequency = 90MHz; RF input step-up = +14.5dBV; IF frequency = 455kHz; RF level =
-68dBm. Test circuit Figure 1. The parameters listed below are tested using automatic test equipment to assure consistent electrical
characteristics. The limits do not represent the ultimate performance limits of the device. Use of an optimized RF layout will improve many of
the listed parameters.
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
UNITS
MIN
TYP MAX
Mixer/Osc section
fIN
fOSC
NF
Input signal frequency
Crystal oscillator frequency
Noise figure at 90MHz
Matched input and output
200
MHz
200
MHz
6.2
dB
TOI
Third-order input intercept point
Input matched to 50Ω source
-17
dBm
P1dB Input 1dB compression point
-27
dBm
Conversion power gain
Matched 50Ω
7
dB
RIN
CIN
ROUT
IF section
Mixer input resistance
Mixer input capacitance
Mixer output resistance
Buffered LO output level
LO = 447mVP-P, 1kΩ AC load
2.5
kΩ
2.2
pF
1.87
kΩ
100
300
500
mVP-P
IF amp power gain
50Ω source
36
dB
Limiter power gain
50Ω source
60
dB
IFBW
IF amp bandwidth
2.5
MHz
October 27, 1993
3
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