TDA18211HD datasheet(7/66 Pages) NXP

7 / 66 page

TDA18211HD_5

Product data sheet

Rev. 05 — 2 June 2009

7 of 66

NXP Semiconductors

TDA18211HD

DVB-T Silicon Tuner IC

8.3 Crystal input mode

The TDA18211HD requires a 16 MHz crystal reference. The chosen crystal must

withstand at least 100

µW drive level. An additional shunt capacitor as shown in Figure 1

is also needed. Its typical value is 5.6 pF. The quartz references for which performance is

guaranteed are:

• NDK NX5032

• Siward SX-5032

• TXC 9C series

• Chungho Elcom HC49/S proﬁle

Clock reference:

• In Master mode, the clock reference must be provided by a 16 MHz crystal connected

between pins XTALP and XTALN of the master tuner

• In Slave mode, the clock reference must be provided by pins XTOUTP and XTOUTN

of the tuner in Master mode to pins XTALP and XTALN of the tuner in Slave mode

8.4 Crystal output mode

Pins XTOUTP and XTOUTN deliver a symmetrical sine waveform to drive the channel

decoder and/or IF demodulator. The load on both outputs should be made similar to

ensure optimum performances. Hence, if only one crystal output is used, the unused

output should be loaded by an equivalent capacitance.

Control interface

9.1 I2C-bus format, write/read mode

Remark: In I2C-bus read mode, the TDA18211HD must read the entire I2C map with the

required subaddress 00h. The number of bytes to be read is 16, or 39 in extended register

mode; see Table 7. Reading write-only bits can return values that are different from the

programmed values.

TDA18211HD Datasheet(PDF) 7 Page - NXP Semiconductors