
Preliminary Technical Information
AD6426
This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no
obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any
infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent
rights of Analog Devices.
Revision Preliminary 2.3 (June 9, ′98)
- 5 -
Confidential Information
Pin Functionality ( NORMAL MODE)
Group
Pin Name
Pins
I/O
Default / Alternative Function(s) *
EVBC Interface
CLKOUT
EVBCRESET
ASDO
ASOFS
ASCLK
ASDI
BSDO
BSOFS
BSCLK
BSDI
BSIFS
VSDO
VSDI
VSCLK
VSFS
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
O
O
O
O
O
I
O
O
I
I
I
O
I
I
I
Clock Output to EVBC
EVBC Reset Output (also for Display reset)
EVBC Auxiliary Serial Port Data Output
EVBC Auxiliary Serial Port Output Framing Signal
EVBC Auxiliary Serial Port Clock Output
EVBC Auxiliary Serial Port Data Input
EVBC Baseband Serial Port Data Output
EVBC Baseband Serial Port Output Framing Signal
EVBC Baseband Serial Port Clock Input
EVBC Baseband Serial Port Data Input
EVBC Baseband Serial Port Input Framing Signal
EVBC Voiceband Serial Port Data Output
EVBC Voiceband Serial Port Data Input
EVBC Voiceband Serial Port Clock Input
EVBC Voiceband Serial Port Framing Signal
ASPORT
BSPORT
VSPORT
Radio Interface
RXON
TXPHASE
TXENABLE
TXPA
CALIBRATERADIO
RADIOPWRCTL
SYNTHEN0
SYNTHEN1
SYNTHDATA
SYNTHCLK
AGCA
AGCB
1
1
1
1
1
1
1
1
1
1
1
1
O
O
O
Receiver On
Switches between Rx and Tx
Transmit Enable / General Purpose Output 14 *
Power Amplifier Enable / General Purpose Output 12 *
Radio Calibration / General Purpose Output 13 *
Radio Power-Down Control
Synthesizer 1 Enable
Synthesizer 2 Enable / General Purpose Output 17 *
RF Serial Port Data
RF Serial Port Clock
AGC Gain Select / General Purpose Output 18
AGC Gain Select / General Purpose Output 19
O / O
O / O
O
O
O
O
O
O
O
Universal
System
Connector
Interface
USCRI
USCRX
USCTX
USCCTS
USCRTS
1
1
1
1
1
1/O
I
O
I/O
O
USC Ring Indicator / Serial Clock / GPO20
USC Receive Data
USC Transmit Data / Baseband Serial Port Data Input
USC Clear to Send / Serial Frame Sync / GPI22
USC Ready to Send / GPO21
* Note: Functionality of these pins can be changed under software control.