PDF AN3117 Data sheet ( Hoja de datos )

Número de pieza	AN3117
Descripción	RF modulator IC for VCR and VDP
Fabricantes	Panasonic Semiconductor
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No Preview Available ! ICs for Digital Still Camera AN2905FHQ Sound input/output interface IC for digital still camera I Overview The AN2905FHQ is a sound input/output interface IC which is optimum for incorporation of sound functions in a digital still camera. The sound pre-processing prior to the digital processing and sound post-processing after DAC are integrated on a single chip. This IC is effective to make the equipment compact. I Features • Functions required for the sound pre- and post-processings are integrated on a single chip • The built-in microphone amp. and microphone power supply • A built-in 0.5 W BTL amp. • Built-in SP power save and electronic volume func- tions • A beep circuit with electronic volume • A built-in internal microphone amp. on/off function • A built-in AGC switch • A built-in AGC to a speaker amp. (Prevents the sound distortion, trembling sound and wire breakdown of the speaker at excessively high voltage signal input) I Applications • Digital still camera (DSC) 36 37 9.00±0.20 7.00±0.20 25 24 Unit: mm 48 1 (0.75) 0.50 13 12 0.20±0.05 0.10 M (1.00) Seating plane 0° to 10° 0.50±0.20 LQFP048-P-0707A I Application Circuit Power supply for microphone Microphone input Speaker Recorder output A/D converter D/A converter Playback input Line output Beep input Publication date: August 2001 SDB00078AEB 1 1 page AN2905FHQ I Electrical Characteristics at VCCH = 4.9 V, VCC-SP = 4.3 V, VCC = 3.1 V, Ta = 25°C (continued) Parameter Symbol Conditions Min Typ Max Unit Rec. AGC characteristics (continued): AGC input → Rec. input Microphone AGC characteristics 1 VAGCML1 VIN = −33 dBS, 1 kHz Microphone AGC characteristics 2 VAGCML2 VIN = −28 dBS, 1 kHz Microphone AGC characteristics 3 VAGCML3 VIN = −22 dBS, 1 kHz Microphone AGC characteristics 3 THAGCM3 VIN = −22 dBS, 1 kHz, THD up to 5th harmonic, load = 22 kΩ −9.3 −7.3 −5.3 −9.0 −6.0 −3.0 −8.8 −5.8 −2.8  0.10 0.40 dBS dBS dBS % Microphone AGC characteristics 4 VAGCM4 VIN = −4 dBS, 1 kHz Microphone AGC characteristics 4 THAGCM4 VIN = −4 dBS, 1 kHz, THD up to 5th harmonic, load = 22 kΩ −8.0 −5.0 −2.0 dBV  0.15 1.0 % AGC-DC offset voltage VDROM Without input, difference from VREF voltage PB line output characteristics: PB input → Line output −30 0 30 mV Line reference output level at playback VLOPS VIN = −12.3 dBS, 1 kHz −8.0 −7.0 −6.0 dBS Line reference output THD at THLOPS VIN = −12.3 dBS, 1 kHz, playback up to 5th harmonic  0.02 0.10 % Line reference output noise voltage at playback VNOPS Without input, using A-curve filter  −84 −78 dBS Line maximum output level at VLMAPOS f = 1 kHz, load = 22 kΩ, playback THD = 1% (up to 5th) 2.8 6.3  dBS Line crosstalk Mic. input → Line output VSOPS1 VIN = −61 dBV, f = 1 kHz, using A-curve filter at PB  −83 −78 dBS Rec. crosstalk 1 PB input → Rec. output VNOM VIN = −7.3 dBV, f = 1 kHz, using A-curve filter  −81 −73 dBS Electronic volume characteristics: PB input → EVR output (AGC = off) Electronic volume maximum (+10 dB) gain VEVMA VIN = −12.3 dBS, 1 kHz, vol. = max. (V16 = 3.1 V) Electronic volume typical (0 dB) gain VEVTP VIN = −12.3 dBS, 1 kHz, vol. = center (V16 = 1.55 V) Electronic volume minimum (maximum attenuation) gain VEVMI VIN = −12.3 dBS, 1 kHz, vol. = min. (V16 = 0 V), using A-curve filter Playback-system characteristics (at AGC on) −12.0 −11.0 −10.0 −24.0 −21.0 −18.0  −90 −80 dBS dBS dBS Playback AGC characteristics 1 VPBAGC1 VIN = −22.3 dBS, 1 kHz, vol. = max. Playback AGC characteristics 2 VPBAGC2 VIN = −12.3 dBS, 1 kHz, (reference +10 dB) vol. = max. −20 −18 −12.5 −9.5 −16 −6.5 dBS dBS Playback AGC characteristics 3 VPBAGC3 VIN = 0 dBS, 1 kHz, (reference +22.3 dB) vol. = max. −11.5 −8.5 −5.5 dBS Playback AGC characteristics 3 THPBAGC3 VIN = 0 dBS, 1 kHz, (reference +22.3 dB) THD vol. = max., 5th harmonic  0.85 1.0 % SDB00078AEB 5 5 Page

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