MAX19708ETM+T Maxim Integrated Products, MAX19708ETM+T Datasheet - Page 23

• Manufacturer Part Number: MAX19708ETM+T
• Description: IC ANLG FRNT END 48-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX19708ETM+T

• Number Of Bits: 10
• Number Of Channels: 4
• Power (watts): 36.9mW
• Voltage - Supply, Analog: 3V
• Voltage - Supply, Digital: 3V
• Package / Case: 48-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 6. Tx-Rx Control Using SPI Commands
Table 7. Aux-DAC Enable Table
(ENABLE-16 Mode)
are the data inputs for each aux-DAC and can be pro-
grammed through SPI. The MAX19708 also includes
two 6-bit registers that can be programmed to adjust
the offsets for the Tx path I and Q channels indepen-
dently (see Table 10). Use the COMSEL mode to select
the output common-mode voltage with bits CM1 and
CM0 (see Table 11). Use aux-ADC mode to start the
auxiliary ADC conversion (see the 10-Bit, 333ksps
X = Don’t care.
A3 A2 A1 A0 E3 E2 E1 E0
E6
0
0
0
0
1
1
1
1
(16-Bit Mode)
(8-Bit Mode)
ADDRESS
0000
1000
E5
0
0
1
1
0
0
1
1
or
E4
0
1
0
1
0
1
0
1
Aux-DAC3
______________________________________________________________________________________
DATA BITS
OFF
OFF
OFF
OFF
ON
ON
ON
ON
1011
1100
1101
1110
Aux-DAC2
OFF
OFF
OFF
OFF
ON
ON
ON
ON
PIN 27
T/R
10-Bit, 11Msps, Ultra-Low-Power
X
X
X
X
SPI1-Rx
SPI2-Tx
SPI3-Rx
SPI4-Tx
MODE
Aux-DAC1
OFF
OFF
OFF
OFF
ON
ON
ON
ON
(Tx-Rx SWITCHING
FUNCTION
SPEED)
SLOW
SLOW
FAST
FAST
Auxiliary ADC section for details). Use ENABLE-8
mode for faster enable and switching between shut-
down, idle, and standby states as well as switching
between FAST, SLOW, Rx and Tx modes.
Shutdown mode offers the most dramatic power sav-
ings by shutting down all the analog sections of the
MAX19708 and placing the Rx ADC digital outputs in
Table 8. Tx Path Full-Scale Select
(ENABLE-16 Mode)
(ENABLE-16 Mode)
Table 9. Aux-ADC Enable Table
0 (Default)
0 (Default)
E7
E9
1
1
Rx Mode:
Rx ADC = ON
Tx DAC = OFF
Rx Bus = Enable
Tx Mode:
Rx ADC = OFF
Tx DAC = ON
Tx Bus = Enable
Rx Mode:
Rx ADC = ON
Tx DAC = ON
Rx Bus = Enabled
Tx Mode:
Rx ADC = ON
Tx DAC = ON
Tx Bus = Enabled
Analog Front-End
DESCRIPTION
Tx-PATH OUTPUT FULL SCALE
Aux-ADC is Powered OFF
Aux-ADC is Powered ON
SELECTION
Low Power:
Slow Rx to Tx through
SPI command.
Low Power:
Slow Tx to Rx through
SPI command.
Moderate Power:
Fast Rx to Tx through
SPI command.
Moderate Power:
Fast Tx to Rx through
SPI command.
±410mV
±500mV
COMMENTS
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