User's Manual

Eagle II GSM Radio Module Technical Manual Preliminary Draft: 08/31/00 49

Part Number: 07100017 version 00.04

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Pin Signal

Name

Direction Functionality Voltage

Level

54 SIM-RST To CPE SIM reset. An output signal to reset a remote SIM device. Leave

signal disconnected if function is not used.

3 V

55 SPK1P To CPE Speaker 1 Positive. Positive output pin. High side of a push-pull

amplifier. Speaker impedance 15 ohms, minimum. Speaker

capacitance of 700 pF, maximum. Driver voltage is 4.5 V peak-to-

peak. Leave signal disconnected if function is not used.

56 SIM-IN From CPE SIM IN signal. Active high. A remote SIM card detection signal input.

Leave signal disconnected if function is not used.

5 V or

3 V

57 GND From CPE Electrical power return for digital and analog grounds.

58 SIM-VCC To CPE SIM 3 volt power. A 3-volt power supply output signal to a remote

SIM device. Power is controlled by the base band processor. Leave

signal disconnected if function is not used

3 V or

5 V

59 SPK1N To CPE Speaker 1 Negative. Negative output pin. Low side of a push-pull

amplifier. Speaker impedance 15 ohms, minimum. Speaker

capacitance of 700 pF, maximum. Driver voltage is 4.5 V peak-to-

peak. Leave signal disconnected if function is not used.

60 SIM-3 V To CPE SIM 3 V output used in conjunction with the SIM-IN signal to a

remote SIM device. Leave signal disconnected if function is not used.

3 V