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PDF AT48810 Data sheet ( Hoja de datos )
| Número de pieza | AT48810 | |
| Descripción | 900 MHz Spread- Spectrum RF Module | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Features
Designed for use with Atmel’s AT48802 Spread-Spectrum Signal Processor
• FCC Part 15, Unlicensed Operation
• RF Despreading and Narrowband IF for Highest Jamming Margin
•• 1 mW Narrowband Operation, or 1 and 50 mW Spread-Spectrum Operation
AT48810
Description
The AT48810 RF module is intended for time domain duplex spread-spectrum com-
munications under FCC Part 15, 902-928 MHz unlicensed operations. This module
features RF despreading and narrowband IF for powerful interference rejection.
Spreading is via direct sequence. The unit can also be operated in a narrow-band
configuration (FCC limits power to 1 mW in narrow band) by restricting the DC voltage
to the power amplifier so that the transmit power is less than 0 dBm per FCC regula-
tions. The unit can also be run in slow half duplex or simplex mode.
900 MHz
Spread-
Spectrum RF
Module
Pin Diagram
15.36 MHz Clock Out
Ground
VCC
Synthesizer Data Clock Input
Synthesizer Data Input
Synthesizer Data Latch Input
Modulation Input
No Connection
PN Spreading Enable Input
PN Input
12
34
56
78
9 10
11 12
13 14
15 16
17 18
19 20
Audio Out
Ground
RSSI Out
T/R Switch
LNA Gain Hi/Low
VCC
No Connection
Transmit Power On/Off Input
Power Amp VCC Input
Power Amp VCC Input
Note: 1. Connector on module is Dupont/Berg part number 87814-610.
Mating connector is 87409-110.
Preliminary
0625A
3-1
1 page  
AT48810
Power Supply
Voltage
+4.5 VDC min., +5.5 VDC max.
Current
Transmit only 185 mA nominal
TDD 50/50 130 mA nominal
Receive only 85 mA nominal
Turn-On Time
for 1 ppm error from final frequency
1.
2.
TCXO, from
Synthesizer,
VCC
VCC
edge = 3 ms max.
stabilized, from data
latch
edge
=
3
ms
max.
(1)
Power Amp
+4.0 VDC full power, +0.6 VDC for Pout < 0 dBm
Note: 1. It is allowable to program the synthesizer before the TCXO is fully stabilized
Adjustments
There are no user adjustments. The three adjustments
are discriminator frequency adjust, TCXO nominal fre-
quency, and transmit upconverter filter tuning.
Environment
Temperature
Humidity
Vibration
Shock
0° to 55°C
10% to 90% non-condensing
Physical
(Dimensional Drawings)
Antenna Port Options
Weight
Center, Left, Right
Ordering Information
Ordering Code
AT48810-RB
AT48810-RH
AT48810-CB
AT48810-CH
AT48810-LB
AT48810-LH
Antenna
Right
Right
Center
Center
Left
Left
Frequency Plan
B
H
B
H
B
H
Second LO
84.3888 MHz
81.9312 MHz
84.3888 MHz
81.9312 MHz
84.3888 MHz
81.9312 MHz
3-5
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet AT48810.PDF ] | |
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