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YDA138 データシート(Datasheet) 5 Page - YAMAHA CORPORATION

部品番号. YDA138
部品情報  D- 3 STEREO 10W DIGITAL AUDIO POWER AMPLIFIER
ダウンロード  20 Pages
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メーカー  YAMAHA [YAMAHA CORPORATION]
ホームページ  http://www.yamaha.com
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YDA138
5
Mode setting
Operating Mode
Outline
L
*
*
*
WL
WL
WL
WL
Z
Z
Sleep mode
H
L
L
*
WL
WL
WL
WL
Z
-
DA Mute mode
*A)
H
L
H
*
WL
WL
RF
RF
Z
-
HA Mute mode
*A)
H
H
L
LLL
P-H
P-H
WL
WL
Z
-
DA External Clock Slave mode
*A)
H
H
L
LLH
P-L
P-L
WL
WL
Z
-
DA External Clock Slave mode
*A)
H
H
L
LHL
P-H
P-H
WL
WL
Z
-
DA External Clock Master mode
*A)
H
H
L
LHH
P-L
P-L
WL
WL
Z
-
DA External Clock Master mode
*A)
H
H
L
HLL
PLS
PLS
WL
WL
Z
-
DA Internal Clock Slave mode
*A)
H
H
L
HHL
PLS
PLS
WL
WL
Z
-
DA Internal Clock Master mode
*A)
H
H
H
*
WL
WL
SIG
SIG
Z
-
HA mode
*A)
H
*
*
LL*
-
-
-
-
-
CKIN
4.19MHz Clock Input
H
*
*
LH*
-
-
-
-
-
CKOUT
4.19MHz Clock Output
H
*
*
HLL
-
-
-
-
-
CKIN
500kHz Input (Internal Clock)
H
*
*
HHL
-
-
-
-
-
CKOUT
500KHz Output (Internal Clock)
Note:
1) “H” and “L” means logic level High and logic level Low, respectively.
2) “WL” means output disabled (weak pull-down output). “RF” means reference level output. “Z” means Hi-Z.
3) “P-H” means a carrier clock of 524kHz. “P-L” means a carrier clock of 466kHz. “PLS” means a carrier clock of
approx. 500kHz (Internally generated clock).
4) “SIG” means an analog audio signal output.
5) “CKIN” means input of a clock with designated frequency. “CKOUT” means output of a designated clock.
6) “DA” means Digital Amplifier. “HA” means Headphone Amplifier.
7) Each output of OUT*L, OUT*R, HPOL, HPOR, PROTN, and CKIO becomes a state as shown in “Protection
Mode”, depending on the protection state, when entering protection state from a mode except sleep mode.
8) In monaural mode, OUT*R signal as shown in the above “Operating Mode” becomes the same as OUT*L signal.
And, HPOR becomes “WL.”
9) In operating modes indicated by *A), a state of the output signal becomes a state as shown in “Protection Mode”
during a protection mode.
10) “HLH” and “HHH” of MODE[2:0] is reserved for system use.
Protection Mode
Outline
H
H
L
*
WL
WL
WL
WL
L
Z
Digital Amplifier Over-current Protection
H
*
*
*
WL
WL
WL
WL
L
Z
Over-Temperature Protection
H
*
*
*
WL
WL
-
-
-
-
Clock Stop Protection
H
*
*
*
WL
WL
WL
WL
Z
Z
Low Voltage Malfunction Prevention Protection
H
H
*
*
WL
WL
RF
RF
-
-
Power Supply Voltage Fluctuation Protection
Note:
1) Each protection function operates when input terminal is in the designated logic condition. Output terminal
becomes a state as shown in the above during protection mode.




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