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STV0042A 数据表(PDF) 10 Page - STMicroelectronics |
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STV0042A 数据表(HTML) 10 Page - STMicroelectronics |
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10 / 24 page  DC AND AC ELECTRICAL CHARACTERISTICS (continued) (VCC = 12V, VDD =5V, Tamb =25 oC unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit AUDIO OUTPUT (Pins VOL OUT R, VOL OUT L) DCOL DC Output Level 4.8 V AOLN Audio Output Level with Reg 00 = 1A FM input as for APA50 No de-emphasis, No pre-emphasis No noise reduction 1.5 1.9 2.34 VPP AOL50 Audio Output Level with Reg 00 = 1A FM input as for APA50 50 µs de-emphasis, 27kΩ//2.7nF load No pre-emphasis, No noise reduction 2.0 3.3 4.0 VPP AOL75 Audio Output Level with Reg 00 = 1A FM input as for APA50 75 µs de-emphasis, 27kΩ//2.7nF load No pre-emphasis, No noise reduction 2.0 3.3 4.0 VPP AMA1 Audio Output Attenuation with Mute-on. Reg 00 = 00. 1VPP - 1kHz from S2 RTN Pins 60 65 dB MXAT Max Attenuation before Mute. Reg 00 = 01. 1kHz, from S2 RTN Pins 32.75 dB MXAG Audio Gain. Reg 00 = 1F. 1kHz, from S2 RTN Pins 5 6 7 dB ASTP Attenuation of each of the 31 steps 1kHz 1.25 dB THDA1 THD with Reg 00 = 1A 1VPP -1kHz from S2 RTN Pins 0.15 % THDA2 THD with Reg 00 = 1A 2VPP -1kHz from S2 RTN Pins 0.3 1 % THDFM THD with Reg 00 = 1A FM input as for APA50 75 µs de-emphasis, ANRS ON 0.3 1 % ACS Audio Channel Separation 1VPP -1kHz on S2 RTN Pins 60 74 dB ACSFM Audio Channel Separation at 1kHz - 0.5 VPP - 50kHz deviation FM input on one channel - 0.5VPP no deviation FM input on the other channel - Reg 05 = 36HEX -75 µs de-emphasis, no ANRS 60 dB SNFM Signal to Noise Ratio FM input as for APA50, 75 µs de-emphasis, no ANRS, Unweighted 56 dB SNFMNR Signal to Noise Ratio FM input as for APA50 75 µs de-emphasis, ANRS ON, Unweighted 69 dB ZOUT L ZOUT H Audio Output Impedance Low impedance mode High impedance mode 30 18 44 55 Ω k Ω AUXILIARY AUDIO OUTPUT (Pins S2 OUT R, S2 OUT L) DCOLAO DC output level Aux. input pins open circuit 4.8 V AOLNS Audio Output Level on S2 FM input as for APA50 No de-emphasis, No pre-emphasis No noise reduction 1.55 2 2.42 VPP AOL50S Audio Output Level on S2 FM input as for APA50 50 µs de-emphasis, 27kΩ//2.7nF load No pre-emphasis, No noise reduction 2.0 3.4 4.0 VPP AOL75S Audio Output Level on S2 FM input as for APA50 75 µs de-emphasis, 27kΩ//2.7nF load No pre-emphasis, No noise reduction 2.0 3.4 4.0 VPP THDAOFM THD on S2 FM input as for APA50 75 µs de-emphasis, no ANRS 0.3 1 % ZOUT L ZOUT H Audio Output Impedance Low impedance mode High impedance mode 30 60 44 100 55 Ω k Ω STV0042A 10/24 |
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