User's Guide

The Hardware View SB300 Series
Page 84 Proprietary and Confidential 2110059 Rev 1.0
9.5.2. Connectors
See Section 9.2.5 for part number and manufacturer contact details on all connections.
9.5.2.1. Antenna Connector
The SB320 provides an MMCX type RF connector for the antenna connection. For proper
matching the antenna should be 50 ohms with a return loss of 10 dB or better between
824 - 894 MHz. System antenna gain should be 0 dB.
9.5.2.2. Host (DTE) Connector
The SB320 provides a single 30-pin ZIF connector with 0.5mm pin spacing. An appropriate Flat
Flex Cable is required to make the connection to the host.
9.5.2.3. Wireline Connector
The SB320 provides a single 13-pin I/O connector next to the antenna connector on the side
opposite the host (DTE) connector. This connector may require custom cabling.
The SB320 PSTN Load Number (5B) is shown on the back label.
9.5.3. Power Specifications
The SB320 requires +5V DC provided on pins 23-24, and ground provided on pins 23-28.
Electrical requirements and current specifications are identified below.
Table 9-7: Power and Current Specifications
Power Supply Requirements
+5V DC ±5%
Maximum noise dc to 100 kHz: 10 mV
pp
Current Drain Wireline Mode
Inactive: 20 mA
Transmit: 220 mA
Current Drain CSC Mode
Receive: 190 mA
Transmit (Full Power): 850 mA
Current Drain CDPD Mode
Deep Sleep: 35 mA
Sleep: 45 mA
Receive: 190 mA
Transmit (Full Power): 760 mA
9.5.4. Electrical
9.5.4.1. Host (DTE) Interface
The SB320 provides a single 30-pin ZIF connector with 0.5mm pin spacing. This connector
provides four interfaces:
1. Serial host interface
2. Modem control interface
3. Power
4. Status line interface