Datasheet

MAX2831/MAX2832
2.4GHz to 2.5GHz 802.11g/b
RF Transceivers with Integrated PA
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Table 29. Register 14 (A3:A0 = 1110)
BIT RECOMMENDED DESCRIPTION
D13:D11 000 Set to recommended value.
D10 0 Reference Clock Output Divider Ratio. Set 1 to divide by 2 or set 0 to divide by 1.
D9 1 Refer ence C l ock Outp ut E nab l e. S et 1 to enab l e the r efer ence cl ock outp ut or set 0 to d i sab l e.
D8:D7 10 Set to recommended value.
D6:D0 XXXXXXX Crystal-Oscillator Fine Tune. Tunes crystal oscillator over ±20ppm to within ±1ppm.
Table 30. Register 15 (A3:A0 = 1111)
BIT RECOMMENDED DESCRIPTION
D13:D12 00 Set to recommended value.
D11:D10 00
Receiver I/Q Output Common-Mode Voltage Adjustment. Set D11:D10 = 00: 1.1V,
01: 1.2V, 10: 1.3V, 11: 1.45V.
D9:D0 0101000101 Set to recommended value.
Table 31. Operating Mode Table
LOGIC PINS
REGISTER
SETTINGS
CIRCUIT BLOCK STATES
MODE
SHDN RXTX
D1:D0
(A3:A0 = 0110)
Rx PATH Tx PATH
PLL, VCO,
LO GEN,
AUTO-TUNER
CALIBRATION
SECTIONS ON
Shutdown 0 0 00 Off Off Off None
Standby 0 1 00 Off Off On None
Rx 1 0 X0 On Off On None
Tx 1 1 0X Off On On None
Rx Calibration 1 0 X1
On
(except LNA)
Upconverters On
C al tone, RF p hase
shi ft, Tx fi l ter
Tx Calibration 1 1 1X Off
On (except PA
driver and PA)
On
AM detector,
Rx I/Q buffers
X = Don’t care.
X = Don’t care.