MAX2830ETM+T Maxim Integrated Products, MAX2830ETM+T Datasheet - Page 30

• Manufacturer Part Number: MAX2830ETM+T
• Description: RF Transceiver 2.4GHz to 2.5GHz 802 .11g-b RF Transceive
• Manufacturer: Maxim Integrated Products

Specifications of MAX2830ETM+T

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The modes of operation for the MAX2830 are shutdown,
standby, transmit, receive, transmitter calibration, and
receiver calibration. See Table 32 for a summary of the
modes of operation. The logic-input pins, SHDN (pin 12)
and RXTX (pin 48), control the various modes.
The MAX2830 features a low-power shutdown mode
that disables all circuit blocks, except the serial-inter-
face and internal registers, allowing the registers to be
2.4GHz to 2.5GHz 802.11g/b RF Transceiver, PA,
and Rx/Tx/Antenna Diversity Switch
Table 30. Register 14 (A3:A0 = 1110)
X = Don’t care.
Table 31. Register 15 (A3:A0 = 1111)
Table 32. Operating Mode Table
X = Don’t care.
Note: See Table 1 for Rx/Tx and antenna diversity operating mode.
30
Rx Calibration
Tx Calibration
Shutdown
D13:D11
D13:D12
D11:D10
Standby
MODE
D8:D7
D6:D0
D9:D0
______________________________________________________________________________________
D10
BIT
BIT
Rx
D9
Tx
RECOMMENDED
RECOMMENDED
SHDN
LOGIC PINS
0
0
1
1
1
1
0101000101
XXXXXXX
000
10
00
00
0
1
RXTX
0
1
0
1
0
1
Modes of Operation
(A3:A0 = 0110)
Set to recommended value.
Reference Clock Output Divider Ratio. Set 1 to divide by 2 or set 0 to divide by 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.
Set to recommended value.
Crystal-Oscillator Fine Tune. Tunes crystal oscillator over ±20ppm to within ±1ppm.
Set to recommended value.
Receiver I/Q Output Common-Mode Voltage Adjustment. Set D11:D10 = 00: 1.1V,
Set to recommended value.
01: 1.2V, 10: 1.3V, 11: 1.45V.
REGISTER
SETTINGS
D1:D0
Shutdown Mode
00
00
X0
0X
X1
1X
(except LNA)
Rx PATH
Off
Off
On
Off
On
Off
loaded and values maintained, as long as V
applied. Set SHDN and RXTX logic-low to place the
device in shutdown mode. After a supply voltage ramp
up, supply current in shutdown mode could be high.
Program the default value to SPI register 0 to eliminate
high shutdown current.
The standby mode is used to enable the frequency syn-
thesizer block while the rest of the device is powered
down. In this mode, the PLL, VCO, and LO generators
On (except PA
driver and PA)
Upconverters
Tx PATH
DESCRIPTION
DESCRIPTION
CIRCUIT BLOCK STATES
Off
Off
Off
On
AUTOTUNER
PLL, VCO,
LO GEN,
Off
On
On
On
On
On
Cal tone, RF phase
CALIBRATION
SECTIONS ON
Standby Mode
Rx I/Q buffers
AM detector,
shift, Tx filter
None
None
None
None
CC
is