MAX2820ETM-T Maxim Integrated Products, MAX2820ETM-T Datasheet - Page 18

• 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

2.4GHz 802.11b Zero-IF Transceivers
Table 5. Synthesizer Register (SYNTH)
Table 7a. Receive Settings Register (RECEIVE), (MAX2820/MAX2821 Only)
18
Table 6. Channel Frequency Block Register (CHANNEL)
ADDRESS
ADDRESS
ADDRESS
______________________________________________________________________________________
0 0 1 0
0 0 1 1
0 1 0 0
DATA BIT
DATA BIT
DATA BIT
D11:D7
D11:D9
D11:D7
D5:D0
D8:D6
D5:D4
D2:D0
D6:D0
D6
D3
X (MAX2820A/
MAX2821A)
(MAX2820/
CONTENT
CONTENT
CONTENT
MAX2821)
BW(2:0)
CF(6:0)
2C(2:0)
1C(2:0)
DL(1:0)
R(5:0)
SF(0)
ICP
X
X
DEFAULT
DEFAULT
DEFAULT
0100101
000000
00000
00000
111
111
010
01
1
1
0
Reserved
Charge-Pump Current Select
• 0 = ±1mA charge-pump current
• 1 = ±2mA charge-pump current
Reserved
Reference Frequency Divider
• 000000 = 22MHz
• 000001 = 44MHz
Reserved
Channel Frequency Select: f
• 0000000 = 2400MHz
• 0000001 = 2401MHz
• …………
• 1100010 = 2498MHz
• 1100011 = 2499MHz
VGA DC Offset Nulling Parameter 2
VGA DC Offset Nulling Parameter 1
RX Level Detector Midpoint Select
• 11 = 01 = 50.2mV
• 10 = 70.9mV
• 00 = 35.5mV
Special Function Select (not presently used)
• 0 = OFF
• 1 = ON
Receive Filter -3dB Frequency Select (frequencies are
approximate)
• 000 = 8.5MHz
• 001 = 8.0MHz
• 010 = 7.5MHz
• 011 = 7.0MHz
• 100 = 6.5MHz
• 101 = 6.0MHz
P
P
P
DESCRIPTION
DESCRIPTION
DESCRIPTION
LO
= (2400 + CF(6:0))MHz