Datasheet

MAX19707
10-Bit, 45Msps, Ultra-Low-Power
Analog Front-End
22 ______________________________________________________________________________________
Table 5. External Tx-Rx Control Using T/R Pin (T/R = 0 = Rx Mode, T/R = 1 = Tx Mode)
ADDRESS DATA BITS T/R
A3
A2 A1 A0 E3 E2 E1 E0 PIN 27
STATE
FUNCTION
Rx TO Tx-Tx TO Rx
SWITCHING SPEED
DESCRIPTION COMMENT
0
Ext1-Rx
Rx Mode:
Rx ADC = ON
Tx DAC = ON
Rx Bus = Enable
Moderate Power:
Fast Rx to Tx when T/R
transitions 0 to 1.
0011
1
Ext1-Tx
FAST-SLOW
Tx Mode:
Rx ADC = OFF
Tx DAC = ON
Tx Bus = Enable
Low Power:
Slow Tx to Rx when T/R
transitions 1 to 0.
0
Ext2-Rx
(Default)
Rx Mode:
Rx ADC = ON
Tx DAC = OFF
Rx Bus = Enable
Low Power:
Slow Rx to Tx when T/R
transitions 0 to 1.
0100
1
Ext2-Tx
SLOW-FAST
Tx Mode:
Rx ADC = ON
Tx DAC = ON
Tx Bus = Enable
Moderate Power:
Fast Tx to Rx when T/R
transitions 1 to 0.
0
Ext3-Rx
Rx Mode:
Rx ADC = ON
Tx DAC = OFF
Rx Bus = Enable
Low Power:
Slow Rx to Tx when T/R
transitions 0 to 1.
0101
1
Ext3-Tx
SLOW-SLOW
Tx Mode:
Rx ADC = OFF
Tx DAC = ON
Tx Bus = Enable
Low Power:
Slow Tx to Rx when T/R
transitions 1 to 0.
0
Ext4-Rx
Rx Mode:
Rx ADC = ON
Tx DAC = ON
Rx Bus = Enable
Moderate Power:
Fast Rx to Tx when T/R
transitions 0 to 1.
0000
(16-Bit Mode)
or
1000
(8-Bit Mode)
0110
1
Ext4-Tx
FAST-FAST
Tx Mode:
Rx ADC = ON
Tx DAC = ON
Tx Bus = Enable
Moderate Power:
Fast Tx to Rx when T/R
transitions 1 to 0.