TDA18218HN_1

© NXP B.V. 2009. All rights reserved.

Product data sheet

Rev. 01 — 8 July 2009

10 of 25

NXP Semiconductors

TDA18218HN

DVB-T Silicon Tuner IC

The programmable module address bits MA[1:0] allow up to four tuners to be addressed

AS. The relationship between the status of bits MA[1:0] and the voltage applied to pin AS

is shown in Table 5.

Example: MA[1:0] = 00, R/W = 0, full module address = 1100 0000 (C0h).

9.2.1 Device type address ID

9.3 Crystal buffer output

TDA18218HN embeds a Xtal oscillator and a buffer to drive another IC. The buffer can be

designed to be AC coupled. This output can be used in differential or sinusoidal mode

(using XTO_N and XTO_P pins) or in asymmetrical or square mode (just leaving one pin

open).

It should be noted that TDA18218HN specification refers to differential output with no

load.

Table 5.

Address byte 1 bit descriptions

Legend: * power-on reset value.

Bit

Symbol

Access

Value

Description

7 to 3

-

R/W

1 1000*

must be set to 1 1000

2 to 1

MA[1:0]

R/W

00

01

10

11

0

R/W

R/W

0

write mode

1

read mode

Table 6.

Address byte 2 bit descriptions

Legend: * power-on reset value.

Bit

Symbol

Access

Value

Description

7 to 6

-

R/W

00*

must be set to 00

5 to 0

AD[5:0]

R/W

-

programmable address bits of the first

programming byte

Table 7.

ID byte bit descriptions

Legend: * power-on reset value.

Address

Register

Bit

Symbol

Access

Value

Description

00h

ID byte

7

-

R

1*

must be 1

6 to 0

ID[6:0]

R

100 0000*

TDA18218HN device type address