PDF BH7760KV Data sheet ( Hoja de datos )

Número de pieza	BH7760KV
Descripción	Analog signal I / O interface for portable audio applications
Fabricantes	ROHM Semiconductor
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No Preview Available ! Multimedia ICs Analog signal I / O interface for portable audio applications BH7760KV The BH7760KV contains the complete audio I / O analog block on a single-chip IC. Therefore, all necessary func- tions for a DVC audio analog I / O interface are provided on one chip. •Applications Portable audio applications •Features 1) Contains the input amplifier, wind noise deletion fil- ter, ALC, 30kHz LPF, line amplifier, stereo head- phone amplifier, and BTL monaural speaker amplifi- er required to configure a analog signal I / O inter- face (audio I / O) all on one chip. 2) With the internal 3-line serial control decoder circuit, serial control enables the setting of the various modes for the IC. •Absolute maximum ratings (Ta = 25°C) Parameter Symbol Limits Unit Applied voltage Power dissipation VCC Pd + 7.0 900∗ V mW Operating temperature Topr – 10 ~ + 70 °C Storage temperature Tstg – 55 ~ + 125 ∗ Reduced by 9.0mW for each increase in Ta of 1°C over 25°C with the IC unmounted. ∗ When mounted on a 70mm × 70mm × 1.6mm glass epoxy board. °C •Recommended operating conditions (Ta = 25°C) Parameter Symbol Power supply voltage (analog system) Power supply voltage (for SP) Power supply voltage (digital system) AVcc SPVcc DVcc ᭺ Not designed for radiation resistance. Limits + 4.0 ~ + 6.0 + 4.0 ~ + 6.0 + 2.7 ~ + 3.3 Unit V V V 1 1 page Multimedia ICs BH7760KV •Electrical characteristics (unless otherwise noted, AVCC = SP, VCC = 5.0V, DVCC = 3.0V, Ta = 25°C) Parameter Symbol Min. Typ. Max. Unit Conditions [HP amplifier] INPUT: PB IN L / R OUTPUT: HP OUT L / R Output voltage level Distortion Maximum output level Output residual noise Crosstalk between channels Muting level VOHP THDHP VOMHP VONHP CTHP MTHP – 12.5 — – 3.0 — — — – 10.0 0.7 – 1.2 – 91.0 – 87.0 – 100.0 – 7.5 2.0 — – 73.0 – 70.0 – 83.0 dBV % dBV dBV dBV dBV VIN = – 18.7dBV VIN = – 18.7dBV∗1 THD = 3%∗1 Rg = 1kΩ∗2 VIN = – 8.7dBV∗2 VIN = – 8.7dBV, V7 = H∗2 [MIX OUT] INPUT: PB IN L / R OUTPUT: MIX OUT Output voltage level VOMIX – 12.5 – 10.0 – 7.5 dBV VIN = – 18.7dBV [SP amplifier] INPUT: BEEP IN OUTPUT: SP OUT 1 / 2 (BML) Output voltage level Distortion Maximum output level Output residual noise SP off level VOSP THDSP VOMSP VONSP VOOFFSP – 4.5 — + 3.0 — — – 1.0 0.8 + 4.8 – 95.0 – 65.0 + 2.5 2.0 — – 80.0 – 55.0 dBV % dBV dBV dBV VIN = – 10.0dBV VIN = – 10.0dBV∗1 THD = 10%∗1 Rg = 1kΩ∗2 VIN = – 6.0dBV∗2 [Control mode hold voltage] 〈CS〉 Low mode hold voltage VH14L 0.0 — 0.5 V — High mode hold voltage VH14H 1.8 — DVCC V — 〈CLK〉 Low mode hold voltage VH15L 0.0 — 0.5 V — High mode hold voltage VH15H 1.8 — DVCC V — 〈DATA IN〉 Low mode hold voltage VH16L 0.0 — 0.5 V — High mode hold voltage VH16H 1.8 — DVCC V — 〈SP ON / OFF〉 SP off hold voltage VH3L 0.0 — 0.5 V — SP on hold voltage VH3H 2.0 — AVCC V — 〈MUTE control〉 MUTE hold voltage VH7L 0.0 — 0.5 V — MUTE hold voltage VH7H 2.0 — AVCC V — 〈FADE control〉 FADE off hold voltage VH26L 0.0 — 0.5 V — FADE on hold voltage VH26H 2.0 — AVCC V — 〈MIC SEL〉 EXT hold voltage VH39L 0.0 — 0.5 V — INT hold voltage VH39H 2.0 — AVCC V — ∗1 B.W. = 400Hz to 30kHz ∗2 DIN AUDIO 5 5 Page

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