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YDA139 Schematic ( PDF Datasheet ) - YAMAHA CORPORATION

Teilenummer YDA139
Beschreibung STEREO 2.5W DIGITAL AUDIO POWER AMPLIFIER
Hersteller YAMAHA CORPORATION
Logo YAMAHA CORPORATION Logo 




Gesamt 18 Seiten
YDA139 Datasheet, Funktion
YDA139
D- 4
STEREO 2.5W DIGITAL AUDIO POWER AMPLIFIER
Overview
YDA139 (D-4) is a digital audio power amplifier IC with maximum output of 2.5W (RL=4 )×2ch.
YDA139 has a “Pure Pulse Direct Speaker Drive Circuit” which directly drives speakers while reducing distortion of
pulse output signal and reducing noise on the signal, and realizes the highest standard low distortion rate characteristics
and low noise characteristics as the same class of output digital amplifier IC.
In addition, circuit design with fewer external parts can be made depend on the condition of use because corresponds to
filter less.
YDA139 has the power-down function which can minimize the power consumption in the standby state.
In addition, high speed recovery function provided realizes recovery time within 1ms from the power-down state.
Moreover, Over-current Protection function for speaker output terminals, IC Thermal Protection function, and POP
Noise Reduction function are provided.
YDA139 supports both digital signal input and analog signal input.
Features
Maximum output
WLCSP25
2.5 W×2ch (VDDP=VDDA=5.0V, RL=4, THD+N=10%)
1.5 W×2ch (VDDP=VDDA=5.0V, RL=8, THD+N=10%)
SSOP24
2.5 W×2ch VDDP=VDDA=5.0V, RL=4, THD+N=10%
1.3 W×2ch VDDP=VDDA=5.0V, RL=8, THD+N=10%
Efficiency
www.DataSheet4WU.LcoCmSP25
91 % (Analog input mode, VDDP=VDDA=5.0V, RL=8, Po=1.5W)
SSOP24
88 % (Analog input mode, VDDP=VDDA=5.0V, RL=8, Po=1.5W)
Distortion Rate (THD+N)
0.03 % (Analog input mode, VDDP=VDDA=5.0V, RL=8, Po=0.65W)
S/N Ratio
99dB (Analog input mode, VDDP=VDDA=5.0V, Gain[1:0]=L,L)
Over-current Protection function
Thermal Protection function
Low voltage Malfunction Prevention function
Power-down function by PDN terminal
Power-down High speed Recovery function
Package
Lead-free 25-ball WLCSP (YDA139-WZ)
Lead-free 24-pin SSOP (YDA139-EZ)
YDA139 CATALOG
CATALOG No.:LSI-4DA139A30
2006.2






YDA139 Datasheet, Funktion
YDA139
Mode Selection Function
YDA139 has mode selection function for selecting analog input and digital input. In the digital input mode, DAC output
signal is output in 12 dB(fixed) of gain. In the analog input mode, analog signal that was input to LIN/RIN is output in a
gain in accordance with the setting of GAIN[1:0] terminal. In the mixing mode, the digital input and analog input is mixed
and output.
MOD[1:0] Setting and Operation Mode
MOD1
MOD0
Function
L L Digital Input Mode
L H Analog Input Mode (DAC Power-down)
H L Mixing Mode
H H Reserved
Note) MOD[1:0]=H,H is already reserved by the system.
Power-down Function
When PDN terminal is L, the power-down mode is selected in YDA139. The mode stops all the circuit functions and
minimizes power consumption. At this time, the output stage of the digital amplifier is disabled (WL*1). In addition, the
High Speed Recovery function allows recovery to the normal operation at 0.8msectPDRwhen setting PDN to H in the
power-down state.
Note)*1: “WL” means output disabled (weak pull-down output).
The relation between power down recovery time (tPDR) and CIN is as follows.
www.DataSheet4U.com
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YDA139 pdf, datenblatt
YDA139
Analog Characteristics*6) (VSS=0V, VDDP= VDDA =5.0V, Ta=25ºC, RL=8, unless otherwise specified)
Digital Amplifier Section
Item Symbol
Conditions
Min. Typ. Max. Unit
Maximum output
(WLCSP25)
Maximum output
(SSOP24)
PO
RL=8Ω
RL=4Ω
VDDP=5.0V,VDDA=5.0V,f=1kHz,THD+N=10%
VDDP=3.6V,VDDA=3.0V,f=1kHz,THD+N=10%
VDDP=5.0V,VDDA=5.0V,f=1kHz,THD+N=10%
VDDP=3.6V,VDDA=3.0V,f=1kHz,THD+N=10%
PO
RL=8Ω
RL=4Ω
VDDP=5.0V,VDDA=5.0V,f=1kHz,THD+N=10%
VDDP=3.6V,VDDA=3.0V,f=1kHz,THD+N=10%
VDDP=5.0V,VDDA=5.0V,f=1kHz,THD+N=10%
VDDP=3.6V,VDDA=3.0V,f=1kHz,THD+N=10%
GAIN[1:0]=L,L
1.5
0.8
2.5
1.2
1.3
0.65
2.5
1.0
12
W
W
W
W
W
W
W
W
dB
Voltage Gain
(Analog input mode)
AV
GAIN[1:0]=L,H
GAIN[1:0]=H,L
18 dB
21.6 dB
GAIN[1:0]=H,H
26 dB
Total Harmonic Distortion Rate
(Analog input mode)
THD+N RL=4Ω, PO=1.25W, f=1kHz, GAIN[1:0]=L,L
RL=8Ω, PO=0.65W, f=1kHz, GAIN[1:0]=L,L
0.03 %
0.03 %
Total Harmonic Distortion Rate
(Digital input mode)
Signal /Noise Ratio
(Analog input mode)
THD+N
SNR
RL=4Ω, PO=1.25W, f=1kHz
RL=8Ω, PO=0.65W, f=1kHz
RL=8Ω, PO=1.5W, A-Weight,
GAIN [1:0]=L,L
0.05 %
0.05 %
99 dB
Signal /Noise Ratio
(Digital input mode)
SNR RL=8Ω, PO=1.5W, A-Weight
98 dB
Channel Separation Ratio
CS 1kHz, GAIN[1:0]=L,L
85 dB
Power supply rejection ratio*7)
Maximum Efficiency
(WLCSP25)
PSRR
η
VDDP=5.0V, VDDA=5.0V, f=217Hz
VDDP=3.6V, VDDA=3.0V, f=217Hz
RL=8Ω, PO=1.5W
80 dB
90 dB
91 %
Maximum Efficiency
(SSOP24)
η RL=8Ω, PO=1.5W
88 %
wwwO.DuatptauSthoefefst4eUt .vcoolmtage
(Analog input mode)
Vo
-
±10
mV
Output offset voltage
(Digital input mode)
Vo
-
±20
mV
Frequency characteristics
(Analog input mode)
Frequency characteristics
(Digital input mode)
fRES
CIN =0.01uF , f=200Hz
CIN =0.01uF , f=20kHz
fRES
f=20Hz
f=20kHz
3/+1
±1
±1
±1
dB
dB
dB
dB
Carrier clock frequency
Over-current protection mode
recovery time
fSW AVDD=5V
TWT CVREF=1uF, CIN=0.01uF
- 920 - kHz
- 300 - ms
Start-up time when power supply
rise
TPS CVREF=1uF, CIN=0.01uF
- 400 - ms
Power-down recovery time
TPDR CVREF=1uF, CIN=0.01uF
Note) *6:All the values of analog characteristics were obtained by using our evaluation circumstance.
Depending upon parts and pattern layout to use, characteristics may be changed.
*7:AVDD and PVDD are different power supply.
*8:Measurements in VDDP=5V is the value in which snubber circuit (1+330pF) is mounted.
- 0.8 - ms
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