AT48810 Ver la hoja de datos (PDF) - Atmel Corporation
Número de pieza
componentes Descripción
Fabricante
AT48810 Datasheet PDF : 5 Pages
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Block Diagram
TX PWR
GAIN
ON/OFF
fC = 83.16 MHz
Bw = 30 kHz
LNA
fC = 1.23 MHz
RSSI
IF AMP
DISCRIMINATOR
AUDIO
ANTENNA
PORT
902-
928 MHz
T/R
SWITCH
DOWN
CONVERTER
XTAL OSC
83.16 ± 1.23 MHz
HANDSET OR BASE
UPCONVERTER
SPREAD
3
DATA
SYNTHESIZER
TCXO
15.36 MHz
TR SW
AMP
fC = 915 MHz
ON/OFF
TX PWR
ON/OFF
PA VCC
OTHER CIRCUITS
VCC
PN PN ENABLE
Note: 1. The module cannot legally be certified without an antenna; this is an FCC requirement.
CLOCK
TDD Rate
7.5 kHz max
Operating Frequencies
Table 1. Version “B” (1, 2, 3, 4, 5, 6, 7, 8)
Channel
1
2
3
4
N
1334
1350
1356
1363
Note:
1. Second LO = 84.3888 MHz
2. Reference Divider = 25
3. Phase Detector = 614.4 kHz
4. First IF = 83.160 MHz
5. Second IF = 1.229 MHz
3-2
AT48810
End B
First LO, MHz
825.7536
829.4400
833.1264
837.4272
TX, MHz
910.1424
913.8288
917.5152
921.8160
RX, MHz
908.9136
912.6000
916.2864
920.5872
6. Synthesizer PLL Bandwidth = 80 kHz nominal
7. Frequency Accuracy = ±3.5 ppm
(including temperature 0° to 50°C)
8. Switching Time = 2.2 ms nominal, Ch 1 to Ch 4
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