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TDA7513 数据表(PDF) 35 Page - STMicroelectronics |
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TDA7513 数据表(HTML) 35 Page - STMicroelectronics |
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35 / 58 page ![]() 35/58 TDA7513 SUBADDRESS 1: PLL Lock detector, FM mode and test SUBADDRESS 2: PLL Counter 1 (LSB) SUBADDRESS 3: PLL Counter 2 (MSB) MSB LSB FUNCTION D7 D6 D5 D4 D3 D2 D1 D0 CHARGE PUMP 0 VCO adjust lock Disable 1 VCO adjust lock Enable 0 fref BYPASS Disable 1 fref BYPASS Enable TURNER/PLL AM/FM MODE 0 Select AM mode 1 Select FM mode LOCK DETECTOR CONTROL 0 0 PD phase difference threshold 10ns 0 1 PD phase difference threshold 20ns 1 0 PD phase difference threshold 30ns 1 1 PD phase difference threshold 40ns 0 0 Not valid 0 1 Activation delay 4x1/fREF 1 0 Activation delay 6x1/fREF 1 1 Activation delay 8x1/fREF 0 Lock detector doesn’t control charge pump 1 Lock detector controls charge pump MSB LSB FUNCTION D7 D6 D5 D4 D3 D2 D1 D0 0 0 00000 0 LSB = 0 0 0 00000 1 LSB = 1 0 0 00001 0 LSB = 2 --- -- - - - - 1 1 11110 0 LSB = 252 1 1 11110 1 LSB = 253 1 1 11111 0 LSB = 254 1 1 11111 1 LSB = 255 MSB LSB FUNCTION D7 D6 D5 D4 D3 D2 D1 D0 0 0 00000 0 MSB = 0 0 0 00000 1 MSB = 256 0 0 00001 0 MSB = 512 --- -- - - - - 1 1 11110 0 MSB = 64768 1 1 11110 1 MSB = 65024 1 1 11111 0 MSB = 65280 1 1 11111 1 MSB = 65536 Note: 1 Swallow mode:fVCO/fSYN = LSB + MSB + 32 |
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