SA636D Philips Semiconductors (Acquired by NXP), SA636D Datasheet - Page 13

• Manufacturer Part Number: SA636D
• Description: SA636; Low Voltage High Performance Mixer FM if System With High-speed RSSI;; Package: SOT266-1 (SSOP20)
• Manufacturer: Philips Semiconductors (Acquired by NXP)

4. Supply bypass and shielding: All of the inductors, the quad tank, and their shield must be grounded. A 0.1 F bypass capacitor on the supply
1. 10 dB S/N corresponds to BER = 10
1. RF generator: Set your RF generator at 110.592 MHz, use a 100 kHz modulation frequency and a 288 kHz deviation.
2. Layout: The layout is very critical in the performance of the receiver. We highly recommend our demo board layout.
3. RSSI: The smallest RSSI voltage (i.e., when no RF input is present and the input is terminated) is a measure of the quality of the layout and
Philips Semiconductors
Table 1.
RF frequency = 110.592 MHz; IF frequency = 9.8 MHz; RF level = –45 dBm; FM modulation = 100 kHz with 288 kHz peak deviation.
NOTE:
NOTES:
2003 Aug 01
Mixer/Osc section (ext LO = 160 mV
IF section
RF/IF section (internal LO)
SYMBOL
Low voltage high performance mixer FM
IF system with high-speed RSSI
design. If the lowest RSSI voltage is 500 mV or higher, it means the receiver is in regenerative mode. In that case, the receiver sensitivity
will be worse than expected.
pin improves sensitivity.
IIP3
PG
R
C
NF
IN
IN
DECT Application Circuit Electrical Characteristics
Conversion power gain
Noise Figure at 110 MHz
Third order input intercept
RF input resistance
RF input capacitance
IF amp gain
Limiter amp gain
Data level
3 dB data bandwidth
System RSSI output
System S/N
RF GENERATOR
110.592MHz
1
PARAMETER
LO / GENERATOR
120.392MHz
RMS
–3
.
)
Figure 11. SA636 Application Circuit Test Set Up
SCOPE
DC VOLTMETER
Matched f1 = 110.592 MHz; f2 = 110.892 MHz
13
TEST CONDITIONS
RF level = –10 dBm
RF level = –83 dBm
R
330
330
LOAD
SA636 DEMO BOARD
RSSI
= 3 k
load
load
SPECTRUM
ANALYZER
DATA
TYPICAL
V
–15
690
130
700
Product specification
3.6
1.4
13
12
38
54
10
CC
= 3V
SR00502
SA636
mV
UNITS
dBm
kHz
dB
dB
dB
dB
dB
pF
V
RMS