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AM7808 데이터시트(PDF) 12 Page - List of Unclassifed Manufacturers

부품명 AM7808
상세설명  AM7808 High-Efficiency Quad-Band Transmit Dual-Band Receive GSM/GPRS CMOS TX Module
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AM7808 데이터시트(HTML) 12 Page - List of Unclassifed Manufacturers

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Rev C Preliminary
Amalfi Confidential
Page 12
475 Alberto Way, Ste 200, Los Gatos, CA 95032
• Tel: 408-399-5360 • Fax: 408-399-5362 • www.amalfi.com
Preliminary Device Specification
AM7808
Pin-Out Information
Pin
Name
Description
Details
1, 2, 4, 5, 8, 9, 13,
16, 17, 18, 19, 20,
21, 23, 28, 29, 30,
31, 32
GND
Ground
3
VBAT2
Secondary Power Supply
This should be connected directly to the battery
6
RFIN_HB
RF Input – DCS1800/PCS1900
50
Ω input, DC blocked
7
RFIN_LB
RF Input – GSM850/900
50
Ω input, DC blocked
10
TX_EN
Enable power core for output power
Logic ‘Low’=Disabled or RX mode
Logic ‘High’=Enable Output Power
This pin is a high impedance CMOS input with no
pull-up or pull-down resistors.
11
VRAMP
Analog Power Control Signal Input
350kHz Low-Pass filter is integrated into the device.
No external filtering is required.
12
SW1
Control signal selecting band of
operation
Logic ‘Low’=Low-band
Logic ‘High’=High-band
This pin is a high impedance CMOS input with no
pull-up or pull-down resistors.
14
ENABLE
Standby control
Logic ‘Low’=Standby Mode
Logic ‘High’=TX or RX mode
This pin is a high impedance CMOS input with no
pull-up or pull-down resistors.
15
VBAT1
Primary Power Supply
This should be connected directly to the battery
22
ANT
Antenna port
50
Ω input/output
24, 27
NC
No Connect
Do not connect these pins
25
RX1
RX Port. RX1 interchangeable with RX2
50
Ω input/output
26
RX2
RX Port. RX2 interchangeable with RX1
50
Ω input/output



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