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SI4784 データシート(PDF) 8 Page - Silicon Laboratories |
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SI4784 データシート(HTML) 8 Page - Silicon Laboratories |
8 / 302 page AN332 8 Rev. 1.0 Table 5. FM Transmitter Property Summary Prop Name Description Default Available In 0x0001 GPO_IEN Enables interrupt sources. 0x0000 All 0x0101 DIGITAL_INPUT _FORMAT1 Configures the digital input format. 0x0000 All except Si4710-A10 0x0103 DIGITAL_INPUT _SAMPLE_RATE1 Configures the digital input sample rate in 1 Hz steps. Default is 0. 0x0000 All except Si4710-A10 0x0201 REFCLK_FREQ Sets frequency of the reference clock in Hz. The range is 31130 to 34406 Hz, or 0 to disable the AFC. Default is 32768 Hz. 0x8000 All 0x0202 REFCLK_PRESCALE Sets the prescaler value for the refer- ence clock. 0x0001 All 0x2100 TX_COMPONENT_ENABLE Enable transmit multiplex signal com- ponents. Default has pilot and L-R enabled. 0x0003 All 0x2101 TX_AUDIO_DEVIATION Configures audio frequency deviation level. Units are in 10 Hz increments. Default is 6825 (68.25 kHz). 0x1AA9 All 0x2102 TX_PILOT_DEVIATION Configures pilot tone frequency devi- ation level. Units are in 10 Hz incre- ments. Default is 675 (6.75 kHz) 0x02A3 All 0x2103 TX_RDS_DEVIATION2 Configures the RDS/RBDS fre- quency deviation level. Units are in 10 Hz increments. Default is 2 kHz. 0x00C8 Si4711/13/21 0x2104 TX_LINE_INPUT_LEVEL Configures maximum analog line input level to the LIN/RIN pins to reach the maximum deviation level programmed into the audio deviation property TX Audio Deviation. Default is 636 mVPK. 0x327C All 0x2105 TX_LINE_INPUT_MUTE Sets line input mute. L and R inputs may be independently muted. Default is not muted. 0x0000 All 0x2106 TX_PREEMPHASIS Configures pre-emphasis time con- stant. Default is 0 (75 µs). 0x0000 All 0x2107 TX_PILOT_FREQUENCY Configures the frequency of the ste- reo pilot. Default is 19000 Hz. 0x4A38 All Notes: 1. Digital Audio Input feature (property DIGITAL_INPUT_FORMAT and DIGITAL_INPUT_SAMPLE_RATE) is supported in FMTX component 2.0 or later. 2. RDS feature (command TX_RDS_BUFF, TX_RDS_PS and RDS properties 0x2103, 0x2C00 through 2C07) is supported in FMTX component 2.0 or later. 3. Limiter feature (LIMITEN bit in TX_ACOMP_ENABLE and property TX_LIMITER_RELEASE_TIME) is supported in FMTX component 2.0 or later. |
同様の部品番号 - SI4784 |
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同様の説明 - SI4784 |
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