MC44BS373CA Data Sheet
I2C Bit Mapping
NOTE
SFD1
SFD0
Sound subcarrier frequency control bits
SFD1 SFD0
Frequency
00
4.5
01
5.5
10
6.0
11
6.5
SREF
Sound PLL reference frequency
0 Sound reference frequency = 31.25 kHz
1 Sound reference frequency = 62.5 kHz
TPEN
Test pattern enable-picture and sound
0 Test pattern signal off (normal operation)
1 Test pattern signal on (picture and sound)
N0–N11
UHF frequency programming bits, in steps of 250 kHz
Y2
RF oscillator operating range information
0 High VCO is active.
1 Low VCO is active.
Y1
RF oscillator operating range information
0 VCO out of range, frequency too low. Only valid if OOR=1
1 VCO out of range, frequency too high. Only valid if OOR=1
OOR
RF oscillator out-of-frequency range information
0 Normal operation, VCO in range
1 VCO out of range
Table 11. I2C Address Selection, Write Mode
SFD1
SFD0
Address Selected
Binary
Hex
0
1100_1000
0xC8
1
0
1100_1010
0xCA
0
1
1100_1100
0xCC
1
1100_1110
0xCE
Table 12. I2C Address Selection, Read Mode
SFD1
SFD0
Address Selected
Binary
Hex
0
1100_1001
0xC9
1
0
1100_1011
0xCB
0
1
1100_1101
0xCD
1
1100_1111
0xCF
Table 10. I2C Bit Mapping Bit Descriptions (continued)
Name
Description