HA12217F データシートの表示（PDF） - Renesas Electronics

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HA12217F

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

Renesas Electronics 

HA12216F/HA12221F Series

Operating Mode Control

HA12216F/HA12221F series provides fully electronic switching circuits. And each operating mode control are

controlled by parallel data (DC voltage).

When a power supply of this IC is cut off, for a voltage, in addition to a mode control terminal even though as do not

destruct it, in series for resistance.

Table 2 Threshold Voltage (VTH)

Pin No.

10, 11*, 12, 13, 14

Lo

–0.2 to 1.0

Hi

3.5 to VCC

Unit

V

Test Condition

Input Pin Measure

V

Note: * Non connection regarding HA12221F series.

Table 3 Switching Truth Table

Pin No.

Lo

Hi

10

TAPE

RADIO

11*

NR OFF

NR ON

12

120 µ (Normal)

70 µ (Metal or Chrome)

13

FORWARD

REVERSE

14

SER (FF or REV)

REP (Normal Speed)

Notes: * Non connection regarding HA12221F series.

1. Each pins are on pulled down with 100 kΩ internal resistor.

Therefore, it will be low-level when each pins are open.

2. Over shoot level and under shoot level of input signal must be the standardized.

(High: VCC, Low: –0.2 V)

3. Reducing pop noise is so much better for 10 kΩ to 22 kΩ resisitor and 1 µF to 22 µF capacitor shown figure 2.

Input Pin 10 to 22kΩ

+ 1 to 22µF

MPU

Figure 2 Interface for Reduction of Pop Noise

Rev.6.00 Jun 15, 2005 page 9 of 52

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