SA626 Philips Semiconductors (Acquired by NXP), SA626 Datasheet - Page 4

• Manufacturer Part Number: SA626
• Description: SA626; Low Voltage High Performance Mixer FM if System With High-speed Rssi
• Manufacturer: Philips Semiconductors (Acquired by NXP)

T
Philips Semiconductors
AC ELECTRICAL CHARACTERISTICS
-68dBm; FM modulation = 1kHz with 125kHz peak deviation. Audio output with C-message weighted filter and de-emphasis filter. 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.
1997 Sept 25
A
SYMBOL
Mixer/Osc section (ext LO = 160mV
IF section
RF/IF section (int LO)
Low voltage high performance mixer FM IF system
with high-speed RSSI
= 25 C; V
f
THD
S/N
OSC
f
IN
CC
Input signal frequency
External oscillator (buffer)
Noise figure at 240MHz
Third-order input intercept point
Conversion power gain
RF input resistance
RF input capacitance
Mixer output resistance
IF amp power gain
Limiter amp power gain
Input limiting -3dB
AM rejection
Audio level
Audio DC level
SINAD sensitivity
Total harmonic distortion
Signal-to-noise ratio
IF RSSI output with buffer
IF RSSI output rise time
(10kHz pulse, no 10.7MHz filter)
(no RSSI bypass capacitor)
IF RSSI output fall time
(10kHz pulse, no 10.7MHz filter)
(no RSSI bypass capacitor)
RSSI range
RSSI accuracy
IF input impedance
IF output impedance
Limiter input impedance
Limiter output impedance
Limiter output level with no load
Audio level
System RSSI output
System SINAD
= +3V, unless otherwise stated.
PARAMETER
RMS
)
RF frequency = 240.05MHz + 14.5dBV RF input step-up; IF frequency = 10.7MHz; RF level =
Matched f1=240.05; f2=240.35MHz
Matched 14.5dBV step-up
IF frequency = 10.7MHz
IF frequency = 10.7MHz
No modulation for noise
TEST CONDITIONS
RF level = -106dBm
Single-ended input
IF level = -111dBm
IF level = -118dBm
RF level = -56dBm
RF level = -28dBm
RF level = -56dBm
RF level = -28dBm
RF level = -10dBm
RF level = -10dBm
IF level = -68dBm
IF level = -10dBm
Pin 9, no signal
80% AM 1kHz
Test at Pin 18
4
Unity gain
(Pin 20)
MIN
120
0.3
0.9
8
LIMITS
SA626
–105
TYP
+1.5
500
500
700
330
160
330
330
330
300
130
160
-16
-43
3.5
1.0
0.2
0.6
1.3
1.2
1.1
2.0
7.3
1.4
14
38
54
50
16
60
90
12
11
Product specification
MAX
200
–38
0.5
1.0
1.8
14
SA626
mV
mV
mV
UNITS
MHz
MHz
dBm
dBm
dB
dB
pF
dB
dB
dB
dB
dB
dB
dB
dB
dB
V
V
V
V
V
RMS
RMS
RMS
s
s
s
s