Silex technology manual SX-560 Power Requirements, Signal Pin Type Description, Usb+

Signal	Pin	Type	Description
CTS1-	28	Input	Serial Port 2 Clear to Send
RXD1	34	Input	Serial Port 2 Receive Data
TXD2	38	Output	Console Port Transmit Data
RXD2	40	Input	Console Port Receive Data
USB+	19	Input/Output	USB Data + (SEE NOTE)
USB -	21	Input/Output	USB Data – (SEE NOTE)
SPI_CS-	25	Output	Serial Peripheral Interface Chip
			Select (high-true)
SPI_MOSI	31	Output	Serial Peripheral Interface Data
			Out
SPI_MISO	33	Input	Serial Peripheral Interface Data In
SPI_CLK	27	Output	Serial Peripheral Interface Clock
RESETI-	1	Output	Power-on Reset (low true)
IIC_SDC	37	Input/Output	IIC (I2C) clock
IIC_SDA	39	Input/Output	IIC (I2C) data
+3.3VDC	6, 18, 23, 30,	Power	Power VCC Input
	35
GND	5, 17, 24, 29,	Power	Power Ground
	36

IMPORTANT: If your device does not use the USB port, the USB+ and USB- signals on the OEM interfaced should be terminated with a 15K pull-down resistor to prevent errors on startup.

The SX-560 module uses the 40-pin receptacle with metal fitting and boss made by Hirose (part number DF12-40DS-0.5V81). This receptacle will work with the following mating female headers:

Hirose part number: DF12(x.x)-40DP-0.5V81

Where “x.x” is 3.5, 4.0, or 5.0 (the stacking height of the header); for example, DF12(3.5)-40DP-0.5V81. For additional information, go to the Hirose website at www.hirose-connectors.com.

SX-560 Power Requirements

The SX-560 power consumption is typically 280mA for wireless-to-serial usage, with a peak consumption is 400mA @ 3.3V. In powersave mode (refer to Chapter 4 for more information) with the SX-560 connected wirelessly to an access point, the consumption is 60mA while idling and an average of about 73mA including wakenings to answer the beacon poll.

The above numbers assume that the only active connections are the 802.11 wireless interface and the serial interface (for example, there are no connections to the GPIOs). The power supply that you select must have adequate capacity to handle the peak power plus any loads with an adequate safety margin. Power consumption specifications are subject to change; contact Silex for more information.

Interfacing the SX-560

Silex

Part Number 140-00192-100

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