MSM7533V データシートの表示（PDF） - Oki Electric Industry

部品番号

コンポーネント説明

メーカー

MSM7533V

2ch Single Rail CODEC

Oki Electric Industry 

¡ Semiconductor

MSM7533H/7533V/7534

PIN AND FUNCTIONAL DESCRIPTIONS

AIN1, AIN2, GSX1, GSX2

AIN1 and AIN2 are the transmit analog inputs for channels 1 and 2.

GSX1 and GSX2 are the transmit level adjustments for channels 1 and 2.

AIN1 and AIN2 are inverting inputs for the op-amp; GSX1 and GSX2 are connected to the output

of the op-amp and are used to adjust the level, as shown below.

When not using AIN1 and AIN2, connect AIN1 to GSX1 and AIN2 to GSX2. During power saving

and power down mode, the GSX1 and GSX2 outputs are at AG voltage.

CH1

Analog Input

R2

GSX1

C1 R1

AIN1 –

+

CH2

Analog Input

R4

GSX2

C2 R3

AIN2 –

+

CH1 Gain

Gain = R2/R1 £ 10

R1: Variable

R2 > 20 kW

C1 > 1/(2 ¥ 3.14 ¥ 30 ¥ R1)

CH2 Gain

Gain = R4/R3 £ 10

R3: Variable

R4 > 20 kW

C2 > 1/(2 ¥ 3.14 ¥ 30 ¥ R3)

AOUT1, AOUT2

AOUT1 is the receive analog output for channel 1 and AOUT2 is used for channel 2.

The output signal has an amplitude of 3.4 VPP above and below the signal ground voltage (SG).

When the digital signal of +3 dBmO is input to DIN1 and DIN2, it can drive a load of 600 W or

more.

During power saving or power down mode, these outputs are at the voltage level of SG with a

high impedance.

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