GL901RX View Datasheet(PDF) - Genesys Logic

Part Name

Description

Manufacturer

GL901RX

Wireless Mouse USB+PS2 Receiver Controller

Genesys Logic 

GL901Rx 1.1

3. Function Description

3.1 Function Block

USB/PS2 Interface

PCB Loop

Antenna

Receiver

Module

Rx Crystal

Rxen

Rxdata

3.3V

XCD

GL901Rx

5V

D-/Data

D+/CLK

Gnd

EEPROM

6Mhz Resonator SWITCH

Figure 3-1: Block Diagram of RF Receiver System

3.2 Power Supply

The nominal operation voltage of GL901Rx is between 4.5~5.5V and it is built in Power Fail Reset

when power voltage below 3.6V+_0.3V. Normal working current is less than 10 mA at 6Mhz.

(a) USB Interface : GL901Rx supports remote wake function, i.e. when USB host send suspend

command, GL901Rx will enter suspend mode and draw a little current. In suspend state GL901Rx

is still active and listening RF signal periodically to scan valid packet. If there is any RF packet is

received, GL901Rx will send remote wake signal to USB host and leave suspend mode. When

GL901Rx enters suspend mode it will stop the oscillator around 750ms then scan RF packet 30ms

periodically.

Table 3-2: Current budget of the Receiver & GL901Rx (Mask)

Mode

GL901Rx current

RF Receiver current

Average current

Normal Current

8mA

3mA

11mA

Suspend Current

308uA

115uA

423uA

(b) PS2 Interface: GL901Rx do not support suspend function in PS2 interface

(c) Regulated 3.3V: VRx (Pin 10) is a regulated 3.3V output for receiver. Notice the pin only can

supply 4mA maximum. And it must be tied a capacitor not less than 1uf to stabilize the output

voltage. This pin is always output 3.3V even in USB suspend mode.

(d) Receiver power control: RxEn (Pin 16 Active high) is the receiver power control pin to enable or

disable receiver. Be sure the current drawing by the receiver must be as little as possible when

RxEn is disable(Low condition)

©2000-2001 Genesys Logic Inc.—All rights reserved

-4

Share Link: