TIR2000 datasheet(48/63 Pages) TI

tên linh kiện	TIR2000

Giải thích chi tiết về linh kiện	High-Speed Serial Infrared Controller With 64-Byte FIFO

PDF	63 Pages

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48 / 63 page

4–12

Table 4–2. RX Demodulation Carrier Frequency (high range TVCFG[4] bit = 1)

TVDMCG [3–0]

3 2 1 0

TVDMCFG [5–4] = 00

TVDMCFG [5–4] = 01

TVDMCFG [5–4] = 10

TVDMCFG [5–4] = 11

0000

400

±20

±50

±100

±150

0001

450

±20

±50

±100

±150

0010

480

±20

±50

±120

±200

(Freq. In KHz)

4.12.3

TV Modulation Configuration Register (TVMDCFG)

Address: C (Hex) – Bank 1

Bit No.

[7–5]

[4–0]

Description

Carrier pulse duration

Carrier frequency.

Default

000

00000

Table 4–3. TX Modulation Carrier Frequency

FREQUENCY RANGE

TVMDCFG

Bits

4 3 2 1 0

FREQUENCY

(kHz)

TVCFG[2]=0 (low range)

00000

00001

00010

…

11010

other

…

invalid

TVCFG[2]=1 (high range)

00000

00001

00010

00011

other

400

450

480

500

invalid

Table 4–4. TX Modulation Carrier Pulse Duration

FREQUENCY RANGE

TVMDCFG

bits

7 6 5

PULSE WIDTH

(

µs)

TVCFG[2]=0 Low Range

000

001

010

011

other

6.0

7.0

9.0

10.6

Invalid

TVCFG[2]=1 High Range

000

001

010

011

other

0.7

0.8

0.9

1.0

Invalid

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