M61518FP

REJ03F0205-0201 Rev.2.01 Mar 30, 2008

Page 11 of 15

P. B. Amp Measurement Circuit Figure

+

–

31

29

27

2

6

1

To 2ch P.B amp

TP

TP

TP

TP

10 k

10 k

10 k

1 kHz

390 k

18 k

1.2 k

470 p

10

µ

10

µ

10 k

6800 p

68

Audio Analyzer

Input Conversion Noise Voltage

• Limits

Typ: 1.0

µVrms (JIS-A)

Max:1.9

µVrms (JIS-A)

• Measurement method

(1) Input signal (1 kHz) to PB1P (pin2) and measure output gain of PB1O (pin6).

(2) Measure output noise voltage of PB1O (pin6) and convert Input conversion noise voltage from output noise

voltage.

Maximum Output Voltage

• Limits

Min: 1.4 Vrms (THD = 1%)

Typ: 1.6 Vrms (THD = 1%)

• Measurement method

Input signal (1 kHz) to PB1P (pin2) and measure output gain of PB1O (pin6) when output THD is 1%.