SA616D View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
SA616D Datasheet PDF : 17 Pages
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Philips Semiconductors
Low-voltage high performance mixer FM IF system
Product specification
SA616
BLOCK DIAGRAM
20
19
18
17
16
15
14
13
12 11
MIXER
IF
AMP
OSCILLATOR
RSSI
LIMITER
QUAD
+–
–+
VREG
E
B
AUDIO
1
2
3
4
5
6
7
8
9
10
Figure 2. Block Diagram
SR00368
DC ELECTRICAL CHARACTERISTICS
VCC = +3V, TA = 25°C; unless otherwise stated.
SYMBOL
PARAMETER
VCC
Power supply voltage range
ICC
DC current drain
TEST CONDITIONS
LIMITS
MIN
TYP MAX
2.7
7.0
3.5
5.0
UNITS
V
mA
AC ELECTRICAL CHARACTERISTICS
TA = 25°C; VCC = +3V, unless otherwise stated. RF frequency = 45MHz + 14.5dBV RF input step-up; IF frequency = 455kHz; R17 = 2.4kΩ
and R18 = 3.3kΩ; RF level = -45dBm; FM modulation = 1kHz with ±8kHz peak deviation. Audio output with de-emphasis filter and C-message
weighted filter. Test circuit Figure 3. The parameters listed below are tested using automatic test equipment to assure consistent electrical
characterristics. 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
MIN
TYP MAX
UNITS
Mixer/Osc section (ext LO = 220mVRMS)
fIN
Input signal frequency
fOSC
Crystal oscillator frequency
Noise figure at 45MHz
150
MHz
150
MHz
6.8
dB
Third-order input intercept point (50Ω
source)
f1 = 45.0; f2 = 45.06MHz
Input RF level = -52dBm
-9
dBm
Conversion power gain
Matched 14.5dBV step-up
11
17
dB
50Ω source
+2.5
dB
RF input resistance
Single-ended input
8
kΩ
RF input capacitance
3.0
4.0
pF
Mixer output resistance
(Pin 20)
1.25
1.5
kΩ
IF section
IF amp gain
50Ω source
44
dB
Limiter gain
50Ω source
58
dB
Input limiting -3dB, R17a = 2.4k, R17b = 3.3k Test at Pin 18
AM rejection
80% AM 1kHz
-105
40
dBm
dB
Audio level
Gain of two (2kΩ AC load)
60
120
mV
SINAD sensitivity
IF level -110dBm
17
dB
THD Total harmonic distortion
-30
-45
dB
1997 Nov 07
3
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