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BL6331 の電気的特性と機能

BL6331のメーカーはBELLINGです、この部品の機能は「MONAURAL 3W Non-Clip DIGITAL AUDIO POWER AMPLIFIER」です。


製品の詳細 ( Datasheet PDF )

部品番号 BL6331
部品説明 MONAURAL 3W Non-Clip DIGITAL AUDIO POWER AMPLIFIER
メーカ BELLING
ロゴ BELLING ロゴ 




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BL6331 Datasheet, BL6331 PDF,ピン配置, 機能
BL6331
BL6331
MONAURAL 3W Non-Clip DIGITAL AUDIO POWER AMPLIFIER
Features
Professional non-clip output control function:
Maximum non-clip output
800mW(VDD=4.2v, RL=8,NC1 mode)
Four mode can be selected with CTRL
terminal: NC1( NonClip1), NC2 (nonClip2),
NC_OFF (NonClip-off), shutdown
Maximum output (work in nonclip-off mode)
3WVDD=5.0V, RL=4, THD+N=10%
0.82WVDD=3.6V, RL=8, THD+N=10%
THD+N
0.06% (VDD = 3.6V, RL=8, PO=0.4W, 1kHZ)
Efficiency With an 8Ω Speaker:
88% at 400 mW
80% at 150 mW
Optimized PWM Output Stage Eliminates LC
Output Filter
Improved PSRR (−75 dB) and Wide Supply
Voltage (2.5 V to 5.5 V) Eliminates Need for
a Voltage Regulator
Over-current and Thermal Protection function
Low voltage Malfunction prevention function
Available in space-saving package:
9-bump WLCSP
Applications
Mobile phone, PDA
MP3/4, PMP, GPS
Portable electronic devices
Pin Diagrams
12
3
A IN+
VDD
VO+
B GND
VREF
PGND
C IN-
CTRL
VO-
top view
General Description
BL6331 is a 3-W (VDD=5.0V, RL=4) high efficiency
filter-free class-D audio power amplifier in a wafer
chip scale package (WLCSP).
BL6331 has a “Professional non-clip output control
circuit” which reducing distortion of output signal due
to either the over level input signal or power supply
voltage down with battery,
Features like 88% efficiency, −75dB PSRR, and
improved RF-rectification immunity make the BL6331
ideal for cellular handsets. In cellular handsets, the
earpiece, speakerphone, and melody ringer can each
be driven by the BL6331.
Application Circuit
C1
1.0uF
differential
input
CTRL1
CTRL2
Rctrl1
Rctrl2
Rctrl3
CIN
33nF
33nF
CIN
Cctrl
0.1uF
IN+ VDD
VO+
IN-
BL6331
CTRL
VREF
AGND
VO-
PGND
C2
1.0uF
Pin Description
Notice: CTRL terminal function is described in page 4.
PIN # Name
Description
A1 IN+ Positive differential input
A2 VDD Power Supply
A3 VO+ Positive BTL output
B1 AGND Analog Ground
B2 VREF Bypass capacitor connected
B3 PGND Power Ground
C1 IN- Negative differential input
C2 CTRL Mode select
C3 VO- Negative BTL output
http://www.belling.com.cn
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Total 12 Pages

1 Page





BL6331 pdf, ピン配列
BL6331
The non-clip function can control the gain of class-D amplifier to obtain a maximum output level (Po
=800mW,VDD=4.2v, RL=8) without distortion. When the output clip which is arisen from the over
lever input signal or power supply voltage down with buttery is detected, BL6331 lowers the Gain of
the digital amplifier to an appropriate value so as not to cause the clipping at the differential signal
output. This is the difference from the traditional AGC (Auto Gain Control) or ALC (Auto Level
Control).
The non-clip performance is depended on three factors:
1、THNC(the threshold THD+N of non-clip) :The non-clip output control circuit detects the THD+N
of output. When the THD+N of output is up to the threshold THD+N of non-clip (0.5%), the amplifier
gain is adjusted.
2、tAT (attack time) :The time from the output clip is detected to the amplifier gain is adjusted.
Normally, attack time is 1ms100ms
3、tRT (release time) :The time from the THD+N of output is lower than THNC to the amplifier gain is
back to normal level. Normally, release time is 20ms5s
The classic music is in well harmonious with long tAT and tRT. The rock and roll music is in well
harmonious with short tAT and tRT.
The non-clip performance is shown in the following graph
The attack time and release time of Non-clip control are fixation two levels, and selects with the
CTRL terminal.
CTRL terminal function
BB CTRL1Rctrl1
or CTRL2 Rctrl2
MCU
R ctrl3
CTRL
Cctrl BL6331
0.1uF
BB CTRL R ctrl
or Cc1t0rKlohm
MCU 0.1uF
CTRL
BL6331
CONFIG 1 of CTRL
CONFIG 2 of CTRL
In CONFIG 1 of CTRL, by connection external resistors (Rctrl1Rctrl2 and Rctrl3: Accuracy of 1%)
to CTRL terminal, and impression setting threshold voltage of each mode to CTRL terminal, the
following can be set: NonClip1, Nonclip2, Nonclip-off, and shutdown mode.
http://www.belling.com.cn
-3-
Total 12 Pages


3Pages


BL6331 電子部品, 半導体
BL6331
Absolute Maximum Ratings
Item
Power supply terminal voltage range
Input terminal voltage range(IN+, IN-, CTRL)
Allowable dissipation (Ta=25℃)
Allowable dissipation (Ta=85℃)
Junction Temperature
Storage Temperature
Symbol
VDD
VIN
PD25
PD85
TJMAX
TSTG
Min.
-0.3
Vss-0.3
-50
Max.
6.0
VDD+0.3
1.67
0.67
125
125
Unit
V
V
W
W
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the
device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If
these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be
affected.
RECOMMENDED OPERATING CONDITIONS
Item
Positive DC Supply Voltage
Analog Input VoltageIN+, IN-, CTRL
Operating Temperature Range
Speaker lmpedance
ELECTRICAL CHARACTERISTICS
Symbol
VDD
VIN
TA
RL
Min.
2.5
0
-40
4
Typ.
3.6
Max.
5.5
VDD
85
Unit
V
V
Item
Symbol
Class D Amplifier performance
Maximum output
NC_OFF
Po
Total Harmonic
Distortion Rate
(BW:20kHz)
Signal/Noise Ratio
(BW:20kHz A-Filter)
Power supply rejection
ratio
Maximum Efficiency
THD+N
SNR
PSRR
η
Output offset voltage
Frequency
characteristics
Voltage Gain
Vos
FSW
AV
Conditions
Min.
RL=4Ω, VDD=5V f=lkHz,
RL=8Ω,VDD=3.6V THD+N=10%
RL=4Ω, Po=0.65W, f=lkHz
RL=8Ω, Po=0.4W, f=lkHz
Av=18dB
217Hz
RL=8Ω, Po=0.6W
RL=8Ω, Po=0.15W
VDD=2.5V to 5.5V
Quiescent Current
IDD VDD=3.6V,no inputno load
Shutdown Current
ISD CTRL=0
Typ.
3.0
0.82
0.06
0.06
84
-75
88
80
±5
500
18
2.0
0.1
Max.
Unit
W
W
%
%
dB
dB
%
%
mV
KHz
dB
mA
uA
Input impedance
ZI
Nonclip Modulator performance
Nonclip maximum
attenuation gain
Nonclip1 mode setting
threshold voltage
Nonclip2 mode setting
threshold voltage
Aa
VNC1
VNC2
http://www.belling.com.cn
-6-
28.6 kΩ
-10
1.20
0.8
dB
VDD
V
1.1 V
Total 12 Pages

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
BL6331

MONAURAL 3W Non-Clip DIGITAL AUDIO POWER AMPLIFIER

BELLING
BELLING
BL6332

3W Anti-Clip Class-D Audio Power Amplifier

BELLING
BELLING


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