SA58641 Philips Semiconductors, SA58641 Datasheet - Page 4

• Manufacturer Part Number: SA58641
• Description: High performance mixer FM IF system
• Manufacturer: Philips Semiconductors

characteristics. The limits do not represent the ultimate performance limits of the device. Use of an optimized RF layout will improve many of the
Philips Semiconductors
AC ELECTRICAL CHARACTERISTICS
T
RF level = –45 dBm; FM modulation = 1 kHz with 125 kHz peak deviation. Audio output with C-message weighted filter and de-emphasis
capacitor. Test circuit Figure 1. The parameters listed below are tested using automatic test equipment to assure consistent electrical
listed parameters.
2004 Dec 16
amb
SYMBOL
SYMBOL
Mixer/Osc section (ext LO = 160mV
IF section
RF/IF section (int LO)
High performance mixer FM IF system
with high-speed RSSI
f
THD
S/N
OSC
f
= 25 C; V
IN
Input signal frequency
External oscillator (buffer)
Noise figure at 240 MHz
Third-order input intercept point
Conversion power gain
RF input resistance
RF input capacitance
Mixer output resistance
IF amp gain
Limiter gain
Input limiting –3dB
AM rejection
Data level
3 dB data bandwidth
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
(10 kHz pulse, no 10.7 MHz 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
System RSSI output
System SINAD
CC
= +5 V, unless otherwise stated. RF frequency = 240.05 MHz + 14.5 dBV RF input step-up; IF frequency = 10.7 MHz;
PARAMETER
PARAMETER
RMS
)
Matched f1=240.05 MHz; f2=240.35 MHz
Matched 14.5 dBV step-up
IF frequency = 10.7 MHz
IF frequency = 10.7 MHz
No modulation for noise
TEST CONDITIONS
TEST CONDITIONS
RF level = –111 dBm
RF level = –56 dBm
RF level = –28 dBm
RF level = –56 dBm
RF level = –28 dBm
RF level = –10 dBm
RF level = –95 dBm
Single-ended input
IF level = –90 dBm
IF level = –45 dBm
IF level = –10 dBm
R
80% AM 1 kHz
Test at Pin 18
LOAD
330
330
(Pin 20)
4
= 100 k
load
load
MIN
120
600
0.2
0.8
8
LIMITS
–105
TYP
500
500
–16
700
330
130
700
–43
330
330
330
300
130
3.5
0.6
1.2
1.6
1.2
1.1
2.0
7.3
1.4
12
11
38
54
50
16
60
70
12
2.0
SA58641
MAX
–38
1.0
1.8
2.3
Objective data
mV
mV
UNITS
UNITS
MHz
MHz
dBm
dBm
kHz
dB
dB
pF
dB
dB
dB
dB
dB
dB
dB
dB
dB
V
V
V
V
RMS
RMS
s
s
s
s