MAX2830ETM+ Maxim Integrated Products, MAX2830ETM+ Datasheet - Page 26

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

Specifications of MAX2830ETM+

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

2.4GHz to 2.5GHz 802.11g/b RF Transceiver, PA,
and Rx/Tx/Antenna Diversity Switch
D12 in Register 1 (A3:A0 = 0001) configures the lock-
detect output as a CMOS or open-drain output. In open-
drain output mode, bit D9 in Register 5 (A3:A0 = 0101)
enables or disables an internal 30kΩ pullup resistor
from the open-drain output.
The MAX2830 includes 16 programmable, 18-bit reg-
isters. The 14 most significant bits (MSBs) are used
for register data. The 4 least significant bits (LSBs) of
each register contain the register address. See Table
15 for a summary of the registers and recommended
register settings.
Table 15. Recommended Register Settings*
* The power-on register settings are not production tested. Recommended register settings must be loaded after V
Figure 3. 3-Wire SPI Serial-Interface Timing Diagram
26
REGISTER
______________________________________________________________________________________
10
11
12
13
14
15
0
1
2
3
4
5
6
7
9
8
SCLK
DIN
CS
D13
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
Programmable Registers and
t
CSO
D12
1
1
1
0
1
0
0
1
0
0
1
0
0
0
0
0
t
CSS
BIT 1
D11
0
0
0
0
0
0
0
0
0
0
1
0
0
1
0
0
3-Wire SPI-Interface
D10
1
0
0
0
1
0
0
0
0
0
1
0
0
1
0
0
t
BIT 2
DS
D9
1
0
0
0
1
0
0
0
0
1
0
0
0
1
1
0
D8
1
1
0
0
0
0
0
0
0
1
1
0
1
0
1
1
D7
0
1
0
0
0
1
0
0
0
1
1
0
0
1
0
0
DATA
BIT 15
t
DH
D6
1
0
0
1
1
0
1
0
0
0
0
1
1
0
0
1
Register data is loaded through the 3-wire SPI/
MICROWIRE™-compatible serial interface. Data is
shifted in MSB first and is framed by CS. When CS is
low, the clock is active, and data is shifted with the ris-
ing edge of the clock. When CS transitions high, the
shift register is latched into the register selected by the
contents of the address bits. See Figure 3. Only the last
18 bits shifted into the device are retained in the shift
register. No check is made on the number of clock
pulses. For programming data words less than 14 bits
long, only the required data bits and the address bits
need to be shifted, resulting in faster Rx and Tx gain
control where only the LSBs need to be programmed.
MICROWIRE is a trademark of National Semiconductor Corp.
BIT 16
D5
0
0
0
1
1
1
1
1
1
1
1
1
0
0
1
0
t
CL
D4
0
1
0
1
0
0
0
0
0
1
0
1
0
1
1
0
D3
0
1
0
1
0
0
0
0
0
0
0
1
0
0
1
0
BIT 23
D2
0
0
0
0
1
1
0
0
0
1
1
1
0
0
0
1
t
CH
D1
0
1
1
0
1
0
0
1
0
0
0
1
0
1
1
0
BIT 24
t
CSH
D0
0
0
1
1
0
0
0
0
1
1
0
1
0
0
1
1
t
CSW
ADDRESS
(A3:A0)
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
CC
is supplied.
TABLE
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30