ISDB-T Single-Segment Low-IF Tuners

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11

Detailed Description

All registers must be written after power-up and no ear-

lier than 100µs after power-up.

Register Descriptions

The MAX2160/EBG include eight programmable regis-

ters and two read-only registers. The eight programma-

ble registers include a test register, a PLL register, a

VCO register, a control register, a XTAL divide register,

an R-divider register, and two N-divider registers. The

read-only registers include two status registers.

MSB

LSB

DATA BYTE

REGISTER

NUMBER

REGISTER

NAME

READ/

WRITE

REGISTER

ADDRESS

D7

D6

D5

D4

D3

D2

D1

D0

1

TEST

WRITE

0x00

TUN2

TUN1

TUN0

FLTS

MXSD

D2

D1

D0

2

PLL

WRITE

0x01

CP1

CP0

CPS

EPB

RPD

NPD

TON

VAS

3

VCO

WRITE

0x02

VCO1

VCO0

VSB2

VSB1

VSB0

ADL

ADE

LTC

4

CONTROL

WRITE

0x03

MOD

BBL1

BBL0

HSLS

PD2

PD1

PD0

EPD

5

XTAL DIVIDE

WRITE

0x04

XD4

XD3

XD2

XD1

XD0

PWDN

STBY

QOFF

6

R-DIVIDER

WRITE

0x05

R7

R6

R5

R4

R3

R2

R1

R0

7

N-DIVIDER MSB

WRITE

0x06

N12

N11

N10

N9

N8

N7

N6

N5

8

N-DIVIDER LSB

WRITE

0x07

N4

N3

N2

N1

N0

X

X

X

9

STATUS BYTE-1

READ

—

X

X

X

CP1

CP0

PWR

VASA

VASE

10

STATUS BYTE-2

READ

—

VCO1

VCO0

VSB2

VSB1

VSB0

ADC2

ADC1

ADC0

BIT NAME

BIT LOCATION

(0 = LSB)

RECOMMENDED

DEFAULT

FUNCTION

TUN[2:0]

7, 6, 5

000

Set the baseband bandpass filter center frequency. This filter’s center frequency

is trimmed at the factory, but may be manually adjusted by clearing the FLTS bit

and programming the TUN[2:0] bits as follows:

FLTS

4

1

Selects which registers set the baseband bandpass filter center frequency.

1 = selects internal factory-set register

0 = selects manual trim register TUN[2:0]