BA7613 datasheet(4/5 Pages) ROHM

4 / 5 page

Multimedia ICs

BA7613N / BA7613F

•Measurement conditions

SW1

SW2

SW3

SW4

SW5

ICC

22222

IN1

IN2

IN3

Vom

IN1

IN2

IN3

IN1

→IN2

IN1

→IN3

IN1

→MUTE

IN2

→IN3

IN2

→MUTE

IN3

→MUTE

IN1

IN2

IN3

CTLA

CTLB

VTH

f = 1kHz

THD = 0.5%

f = 1MHz,

V = 1VP-P

f = 4.43MHz,

V = 1VP-P

f = 10MHz / f = 1MHz,

∗1

∗2

∗3

∗4

∗5

Parameter

Symbol

Switch settings

Measurement

method

Current dissipation

Ammeter

Maximum

output

level

Voltage gain

Interchannel

crosstalk

Frequency

characteristic

CTL pin

switching level

∗1: Connect a distortion meter to the output, and input a f = 1kHz sine wave. Adjust the input level until the output distortion is 0.5%. This

output voltage at this time multiplied by 2 is the maximum output level Vom (VP-P).

∗2: Input a 1VP-P, 1MHz sine wave. The voltage gain is given by GV = 20 log (VOUT / VIN) + 6.

∗3: Input a 1VP-P, 4.43MHz sine wave. The interchannel crosstalk is given by CT = 20 log (VOUT / VIN).

∗4: Input 1VP-P, 1MHz and 10MHz sine waves.

The frequency characteristic is given by Gf = 20 log (VOUT (f = 10MHz) / VOUT (f = 1MHz)).

∗5: Input a 1VP-P, 1MHz sine wave. Reduce the CTL pin voltage from VCC.

The CTL pin switching level (VTH) is the CTL pin voltage at which the VOUT level drops below 20mVP-P.

•Electrical characteristic curves

INPUT VOLTAGE: VIN (VP-P)

VCC = 12V

VCC = 9V

VCC = 5V

Fig. 2 VIN vs. VOUT (f = 1kHz)

– 4

100k

300k

10M

30M

100M

– 2

FREQUENCY: f (Hz)

Fig. 3 Frequency characteristics

– 80

100k

300k

10M

30M

100M

– 60

– 40

– 20

FREQUENCY: f (Hz)

Fig. 4 Interchannel crosstalk

•Operation notes

The output impedance is approximately 32

Ω. Therefore,

to ensure output matching, connect an external resistor of 43

Ω.

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