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TDA7546TR データシート(PDF) 6 Page - STMicroelectronics

部品番号 TDA7546TR
部品情報  Multichip module for TMC tuner applications
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7546TR データシート(HTML) 6 Page - STMicroelectronics

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Figure 1.
Tuner block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 2.
RDS decoder block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 3.
Applications and test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 4.
Fractional PLL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 5.
Demodulator block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 6.
Group and block synchronization diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 7.
Example for flywheel mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 8.
RAM buffer usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 9.
RAM buffer update depends on “syncw” bit rds_bd_ctrl[0] . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 10.
RAM buffer states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 11.
Tuner software specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 12.
I2C data transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Figure 13.
I2C write transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Figure 14.
I2C write operation example: write of rds_int and rds_bd_ctrl registers . . . . . . . . . . . . . . . 57
Figure 15.
I2C read transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Figure 16.
I2C read access example 1: read of 5 bytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Figure 17.
I2C read access example 2: read of 1 byte. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Figure 18.
SPI data transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Figure 19.
Write rds_int, rds_bd_ctrl and pll_reg4 registers in SPI mode . . . . . . . . . . . . . . . . . . . . . . 60
Figure 20.
Read out RDS data and related flags, no update of rds_int and rds_bd_ctrl registers. . . . 60
Figure 21.
Write rds_int registers in SPI mode, reading 1 register . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Figure 22.
Block diagram I/Q mixer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Figure 23.
Block diagram VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Figure 24.
Block diagram keying AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure 25.
Block diagram ISS function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure 26.
TQFP80LS mechanical data & package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66


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