SA58641 Ver la hoja de datos (PDF) - NXP Semiconductors.
Número de pieza
componentes Descripción
Fabricante
SA58641 Datasheet PDF : 26 Pages
| |||
NXP Semiconductors
SA58641
High performance mixer FM IF system with high-speed RSSI
12. Dynamic characteristics
Table 7. Dynamic characteristics
Tamb = 25 C; VCC = +5 V; unless otherwise specified. RF frequency = 240.05 MHz + 14.5 dBV RF input step-up.
IF frequency = 10.7 MHz; 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 18. The parameters listed 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
Conditions
Min Typ Max Unit
Mixer/oscillator section (external LO = 160 mV RMS value)
fi
input frequency
fosc
oscillator frequency
NF
noise figure
external (buffer)
at 240 MHz
-
500 -
MHz
-
500 -
MHz
-
12
-
dB
IP3I
input third-order intercept point matched f1 = 240.05 MHz;
f2 = 240.35 MHz
-
16 -
dBm
Gp(conv)
Ri(RF)
Ci(RF)
Ro(mix)
IF section
conversion power gain
RF input resistance
RF input capacitance
mixer output resistance
matched 14.5 dBV step-up
single-ended input
MIXER_OUT (pin 20)
8
11
-
dB
-
700 -
-
3.5 -
pF
-
330 -
Gamp(IF)
Glim
Pi(IF)
IF amplifier gain
limiter gain
IF input power
330 load
330 load
for 3 dB input limiting sensitivity;
test at IF_AMP_IN (pin 18)
-
38
-
dB
-
54
-
dB
-
105 -
dBm
AM
Vo(RMS)
B3dB
SINAD
AM rejection
RMS output voltage
3 dB bandwidth
signal-to-noise-and-distortion
ratio
80 % AM 1 kHz
RL = 100 k
data
RF level = 111 dBm
-
50
-
120 130 -
mV
600 700 -
kHz
-
16
-
dB
THD
total harmonic distortion
-
43 38 dB
S/N
signal-to-noise ratio
no modulation for noise
-
60
-
dB
Vo(RSSI) RSSI output voltage
IF with buffer
IF level = 90 dBm
-
0.6 1.0 V
IF level = 45 dBm
0.2 1.2 1.8 V
IF level = 10 dBm
0.8 1.6 2.3 V
tr(o)
output rise time
IF RSSI; 10 kHz pulse; no 10.7 MHz
filter; no RSSI bypass capacitor;
IF frequency = 10.7 MHz
RF level = 56 dBm
-
1.2 -
s
RF level = 28 dBm
-
1.1 -
s
tf(o)
output fall time
IF RSSI; 10 kHz pulse; no 10.7 MHz
filter; no RSSI bypass capacitor;
IF frequency = 10.7 MHz
RF level = 56 dBm
-
2.0 -
s
RF level = 28 dBm
-
7.3 -
s
SA58641
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 9 March 2012
© NXP B.V. 2012. All rights reserved.
9 of 26
Share Link: 