MAX2837 Просмотр технического описания (PDF) - Maxim Integrated

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производитель

MAX2837

2.3GHz to 2.7GHz Wireless Broadband RF Transceiver

Maxim Integrated 

MAX2837

2.3GHz to 2.7GHz Wireless

Broadband RF Transceiver

Table 6. Address 3, LPF Register 2 (Default = 1B9HEX)

DATA BITS

DEFAULT

DESCRIPTION

D9:D7

Tx output (real pole) common-mode voltage adjustment.

000 = 1.00 V

001 = 1.05

010 = 1.10

011

011 = 1.15 (default)

100 = 1.20

101 = 1.25

110 = 1.30

111 = Not allowed

D6:D0

0111001

Set to recommended value.

Table 7. Address 4, LPF Register 3 and VGA Register 1 (Default = 00AHEX)

DATA BITS

DEFAULT

DESCRIPTION

D9:D8

Sets the RX VGA output common-mode voltage.

00 = 0.9V (default)

00

01 = 1.0V

10 = 1.1V

11 = 1.25V

D7:D6

00

Set to recommended value.

RXVGA output MUX and buffer enable, except for shutdown mode.

D5

0

1 = Enable

0 = Disabled

Enables RxVGA, except for shutdown mode.

D4

0

1 = Enable

0 = Disabled

D3:D0

1010

Set to recommended value.

Table 8. Address 5, VGA Register 2 (Default = 080HEX)

DATA BITS

D9:D6

DEFAULT

0010

Set to recommended value.

DESCRIPTION

RX baseband output select.

D5

0

Used to select RX mode and TX calibration mode output.

0 = RXVGA (default)

1 = TX AM detector for TX calibration mode.

D4:D0

00000

Sets attenuation in the RxVGA. Active when Address 8 D<1 > = 1.

00000 = MAX gain (default)

00001 = MAX - 2dB

…

11111 = MIN gain

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