HA12215 データシートの表示（PDF） - Hitachi -> Renesas Electronics

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HA12215

Audio Signal Processor for Cassette Deck (Dolby B-type NR with Recording System)

Hitachi -> Renesas Electronics 

HA12215F

Functional Description

Power Supply Range

HA12215F is designed to operate on split supply.

Table 1 Supply Voltage

Product

VCC (V)

VEE (V)

Note

HA12215F

+6.0 to +7.5

–7.5 to –6.0

|

V

CC

+

V

EE

|

<

1.0

V

Note: The lower limit of supply voltage depends on the line output reference level.

The minimum value of the overload margin is specified as 12 dB by Dolby Laboratories.

Reference Voltage

The reference voltage are provided for the left channel and the right channel separately. The block diagram

is shown as figure 1.

VCC

21 VCC

+

−

L channel reference

49 GND

VEE

+

−

Music sensor reference

50 VEE

+

−

R channel reference

Figure 1 Reference Voltage

Rev.5, Oct. 1999, page 9 of 69

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