MAX2820ETM-T Maxim Integrated Products, MAX2820ETM-T Datasheet - Page 17

• Manufacturer Part Number: MAX2820ETM-T
• Description: RF Transceiver 2.4GHz 802.11b Zero-If Transceiver
• Manufacturer: Maxim Integrated Products

Specifications of MAX2820ETM-T

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

Table 3. Register Power-Up Default States
Table 4. Block-Enable Register (ENABLE)
ADDRESS
REGISTER
TRANSMIT
CHANNEL
0 0 0 1
RECEIVE
ENABLE
SYNTH
DATA BIT CONTENT DEFAULT
______________________________________________________________________________________
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
ADDRESS
0001
0010
0011
0100
0101
2.4GHz 802.11b Zero-IF Transceivers
E(11)
E(10)
E(9)
E(8)
E(7)
E(6)
E(5)
E(4)
E(3)
E(2)
E(1)
E(0)
000000011110
000001000000
000000100101
111111010010
000000000000
DEFAULT
0
0
0
0
0
0
0
1
1
1
1
0
Reserved
PA Bias-Control Enable (PAB_EN)
• PAB_EN = SHDNB • (E(10) + TX_ON)
Transmit Baseband Filters Enable (TXFLT_EN)
• TXFLT_EN = SHDNB • (E(9) + TX_ON)
TX Upconverter + VGA + Driver Amp Enable (TXUVD_EN)
• TXUVD_EN = SHDNB • (E(8) + TX_ON)
Receive Detector Enable (DET_EN)
• DET_EN = SHDNB • (E(7) + RX_ON)
RX Downconverter + Filters + AGC Amps Enable (RXDFA_EN)
• RXDFA_EN = SHDNB • (E(6) + RX_ON)
Receive LNA Enable (RXLNA_EN)
• RXLNA_EN = SHDNB • (E(5) + RX_ON )
Autotuner Enable (AT_EN)
• AT_EN = SHDNB • (E(4) + RX_ON + TX_ON)
PLL Charge-Pump Enable (CP_EN)
• CP_EN = SHDNB • E(3)
PLL Enable (PLL_EN)
• PLL_EN = SHDNB • E(2)
VCO Enable (VCO_EN)
• VCO_EN = SHDNB • E(1)
Reserved
Block-Enable Control Settings (E)
Synthesizer Settings:
• Reference frequency (R)
• Lock-detect enable (LD)
• Charge-pump current (ICP) (MAX2820/MAX2821 only)
Channel frequency settings (CF)
Receiver Settings:
• VGA DC offset nulling parameter 1 (1C)
• VGA DC offset nulling parameter 2 (2C)
• -3dB lowpass filter bandwidth (BW)
• Detector midpoint level (DL)
• Special function bit (SF)
Transmit Settings:
• PA bias (PA)
DESCRIPTION AND LOGICAL DEFINITION
FUNCTION
17