DAC3550A datasheet(7/35 Pages) MICRONAS

部品番号	DAC3550A

部品情報	DAC 3550A STEREO AUDIO DAC

Download	35 Pages

Scroll/Zoom	100%

メーカー	MICRONAS [Micronas]

ホームページ	http://www.micronas.com

Logo

7 / 35 page

DAC 3550A

Micronas

7

Fig. 2–5: Postfilter op amps, deemphasis op amps, and line-out

2.8. Analog Volume

The analog volume control covers a range from

+18 dB to

−75 dB. The lowest step is the mute posi-

tion.

Step size is split into a 3-dB and a 1.5-dB range:

−75 dB...−54 dB: 3 dB step size

−54 dB...+18 dB: 1.5 dB step size

2.9. Headphone Amplifier

The headphone amplifier output is provided at the

OUTL and OUTR pins connected either to stereo

headphones or a mono loudspeaker. The stereo head-

phones require external 47-

Ω serial resistors in both

channels. If a loudspeaker is connected to these out-

puts, the power amplifier for the right channel must be

switched to inverse polarity. In order to optimize the

available power, the source of the two output amplifiers

should be identical, i.e. a monaural signal.

Please note, that if a speaker is connected, it should

strictly be connected as shown in Fig. 2–5. Never use

a separate connector for the speaker, because electro-

static discharge could damage the output transistors.

FOPL

FINL

FOPR

-

AGNDC

VREF

Speaker

Headphones

OUTL

OUTR

1.5 k

Ω

47

Ω

FOUTL

FOUTR

from switch matrix

3.3

µF/100 nF

+

AVSS

AVDD

32

Ω

to

µC (HP-switch)

1.5 k

Ω

47

Ω

optional line-out

DEEML

For external components

,

DEEMR

16-32

Ω

FINR

see section “Applications”

For external components

,

see section “Applications”

Table 2–1: Volume Control

Volume/dB

AVOL

18.0

111000

16.5

110111

15.0

110110

13.5

110101

−−

0.0

101100 (default)

−1.5

101011

−−

−54.0

001000

−57.0

000111

−−

−75

000001

Mute

000000

同様の部品番号 - DAC3550A

メーカー	部品番号	データシート	部品情報
Analog Devices	DAC312	269Kb / 14P	12-Bit High Speed Multiplying D/A Converter REV. C
	DAC312	240Kb / 14P	12-Bit High Speed Multiplying D/A Converter REV. C
	DAC312BR/883	269Kb / 14P	12-Bit High Speed Multiplying D/A Converter REV. C
	DAC312ER	269Kb / 14P	12-Bit High Speed Multiplying D/A Converter REV. C
	DAC312FR	269Kb / 14P	12-Bit High Speed Multiplying D/A Converter REV. C

More results

同様の説明 - DAC3550A

メーカー	部品番号	データシート	部品情報
List of Unclassifed Man...	MS6311	197Kb / 6P	Stereo Audio DAC
List of Unclassifed Man...	MS6310	88Kb / 6P	Stereo Audio DAC
MOSA ELECTRONICS	MS6311	169Kb / 6P	Stereo Audio DAC
MOSA ELECTRONICS	MS6313	245Kb / 7P	Stereo Audio DAC
Texas Instruments	PCM5100A	1Mb / 42P	[Old version datasheet] Audio Stereo DAC
	PCM5121	2Mb / 120P	[Old version datasheet] Audio Stereo DAC
	PCM5141	2Mb / 123P	[Old version datasheet] Audio Stereo DAC
Winbond	W6630CR	14Kb / 1P	STEREO AUDIO DAC
MOSA ELECTRONICS	MS6610	162Kb / 6P	Stereo Audio DAC
Winbond	W6631CS	13Kb / 1P	STEREO AUDIO DAC