HA12198F データシートの表示（PDF） - Hitachi -> Renesas Electronics

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HA12198F

Audio Signal Processor for Car Deck (Decode only Dolby B-type NR with PB Amp.)

Hitachi -> Renesas Electronics 

HA12192F/HA12197F/HA12212F Series

Functional Description

Power Supply Range

HA12192F series and HA12197F series are provided with three line output level, which will permit on

optimum overload margin for power supply conditions. And these series are designed to operate on single

supply only.

Table 1 Spply Voltage Range

Product

Single Supply

HA12192F, HA12197F

6.5V to 15.0V

HA12193F, HA12198F

6.8V to 15.0V

HA12194F, HA12199F

7.2V to 15.0V

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

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

Reference Voltage

These devices provide the reference voltage of half the supply voltage that is the signal grounds. As the

peculiarity of these devices, the capacitor for the ripple filter is very small about 1/100 compared with their

usual value. The block diagram is shown as figure 1.

+

11 VCC

−

+

−

+

23 RIP

−

+

C15

1µ

+

−

MS block

26 VREF

L, R channel

EQ block

L channel

Dolby block

R channel

Dolby block

Note: HA12197F series is not built-in Dolby block.

: internal reference voltage

Figure 1 The Block Diagram of Reference Supply Voltage

Rev.5, Jun. 1999, page 10 of 89

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