apa2071 Anpec Electronics Corporation, apa2071 Datasheet

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apa2071

Manufacturer Part Number
apa2071
Description
Stereo 3.1w Non-inverting Audio Power Amplifier With Dc Volume Control
Manufacturer
Anpec Electronics Corporation
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
apa2071JI-TUG
Manufacturer:
VISHAY
Quantity:
10 000
Part Number:
apa2071JI-TUL
Manufacturer:
ANPEC
Quantity:
17 724
R-CH
Input
L-CH
Input
APA2071
Features
Simplified Application Circuit
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright
Rev. A.1 - Aug., 2008
Stereo 3.1W Non-inverting Audio Power Amplifier(with DC Volume Control)
DC Volume
Control
at 10% THD+N
- 2.4W, at V
- 1.8W, at V
- 3.1W, at V
- 2.6W, at V
by SE/BTL Pin
Non-Inverting Audio Power Amplifier
Low Operating Current about 9mA (Typical)
Improved Depop Circuitry to Eliminate Turn-On
and Turn-Off Transients in Outputs
32-Step Volume Adjustable by DC Voltage
with Hysteresis
Output Power at 1% THD+N
Two Output Modes: BTL and SE Modes Selected
Low Current Consumption in Shutdown Mode
(1 A, Typical)
Short Circuit Protection
Thermal Shutdown Protection and Over Current
Protection Circuitry
Power Enhanced Package (DIP-16)
Lead Free and Green Devices Available
(RoHS Compliant)
ANPEC Electronics Corp.
LINN
RINN
VOLUME
DD
DD
DD
DD
=5V, BTL Mode, R
=5V, BTL Mode, R
=5V, BTL Mode, R
=5V, BTL Mode, R
APA2071
ROUTN
LOUTN
LOUTP
ROUTP
L
L
L
L
=3
=4
=3
=4
Speaker
Stereo
1
Headphone
Stereo
Applications
General Description
The APA2071 is a monolithic integrated circuit, which
provides precise DC volume control, and a stereo
bridged audio power amplifiers capable of producing
2.6W (1.8W) into 4
The attenuator range of the volume control in APA2071 is
from 18dB (V
steps. The advantage of internal gain setting can be less
components and PCB area. Both the depop circuitry and
the thermal shutdown protection circuitry are integrated
in the APA2071, that reduce pops and clicks noise dur-
ing power up or shutdown mode operation. It also im-
proves the power off pop noise and protects the chip be-
ing destroyed by over temperature and short current
failure. To simplify the audio system design, the APA2071
combines a stereo bridge-tied load (BTL) mode for
speaker drive and a stereo single-end (SE) mode for head-
phone drive into a single chip, where both modes are
easily switched by the SE/BTL input control pin signal.
Notebook PC
LCD Monitor or TV
VOLUME
=0V) to -80dB (V
with less than 10% (1.0%) THD+N.
VOLUME
www.anpec.com.tw
=3.54V) with 32

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apa2071 Summary of contents

Page 1

... The APA2071 is a monolithic integrated circuit, which provides precise DC volume control, and a stereo bridged audio power amplifiers capable of producing 2.6W (1.8W) into 4 The attenuator range of the volume control in APA2071 is from 18dB (V steps. The advantage of internal gain setting can be less components and PCB area. Both the depop circuitry and ...

Page 2

... APA2071 Ordering and Marking Information APA2071 APA2071 APA2071 J : XXXXX Note : ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD- 020C for MSL classification at lead-free peak reflow temperature. ANPEC defines “ ...

Page 3

... Ripple=0.1Vrms =2 =217Hz BYPASS BYPASS L f =1kHz in 3 Range Unit 3.3 ~ 5 -1 -40 ~ 125 - Typical values A APA2071 Unit Min. Typ. Max 0.07 - ...

Page 4

... P =65mW =1kHz Ripple =0.1Vrms =217Hz BYPASS =1kHz BYPASS = =75mW, R =32 , A_wieghting - Typical values A APA2071 Unit Min. Typ. Max 220 - - 120 - mW - 160 - - 0. 0. ...

Page 5

... APA2071 Typical Operating Characteristics THD+N vs. Output Power =18dB 1kHz in BTL Mode 0.1 0.01 0 0.5 1 1.5 Output Power (W) THD+N vs. Output Power =1kHz BTL Mode 18dB V 0 6dB V 0. 1.5 0.5 Output Power (W) THD+N vs. Frequency ...

Page 6

... APA2071 Typical Operating Characteristics (Cont.) THD+N vs. Output Power =1kHz BTL Mode 18dB V 0 6dB V 0.01 0 0.5 1 1.5 Output Power (W) THD+N vs. Frequency =1.5W O BTL Mode 6dB 0 0.01 20 100 Frequency (Hz) THD+N vs. Output Power 1kHz ...

Page 7

... APA2071 Typical Operating Characteristics (Cont.) THD+N vs. Frequency 6dB BTL Mode 0. 0.9W O 0.01 20 100 Frequency (Hz) THD+N vs. Output Power =1kHz Mode 0dB V 0 12dB V 0.01 0 40m 80m 120m 160m 200m Output Power (W) THD+N vs. Frequency ...

Page 8

... APA2071 Typical Operating Characteristics (Cont.) THD+N vs. Output Power =1kHz Mode 0dB V 0 12dB V 0.01 40m 80m 120m 160m 200m 0 Output Power (W) THD+N vs. Frequency =65mW O C =1000 Mode 0dB V 0 14dB V 0.01 100 ...

Page 9

... APA2071 Typical Operating Characteristics (Cont.) Frequency Response +14 Amplitude(12dB) +10 Phase(12dB) +4 Phase(0dB) +0 Amplitude(0dB =1000 =60mW O SE Mode -8 10 100 1k Frequency (Hz) Crosstalk vs. Frequency +0 V =5V - -20 P =0.9W O -30 BTL Mode -40 -50 -60 -70 -80 Right to Left -90 -100 Left to Right -110 ...

Page 10

... APA2071 Typical Operating Characteristics (Cont.) Output Noise Voltage vs. Frequency 100 Filter BW<22kHz 20 A-weighting =6dB BTL Mode 1 20 100 Frequency (Hz) PSRR vs. Frequency +0 V = =200mV - =18dB V -30 BTL Mode -40 -50 -60 -70 -80 -90 -100 100 20 Frequency (Hz) Mute Attenuation vs ...

Page 11

... APA2071 Typical Operating Characteristics (Cont.) Gain vs. Volume Voltage -10 -20 Up -30 -40 -50 - Load -70 BTL Mode -80 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 DC Voltage (V) Power Dissipation vs.Output Power 2.0 1.8 1.6 1.4 1.2 1.0 0.8 R 0.6 L 0.4 0.2 0.0 0.0 0.5 1.0 1.5 Output Power (W) Output Power vs. Supply Voltage 4 ,THD+N=10% 3 ,THD+N=1% L 3.0 2.5 2.0 1.5 1 ,THD+N= ,THD+N=10% 0 ,THD+N= ...

Page 12

... APA2071 Pin Description PIN NO. NAME SHUTDOWN 1 2 BYPASS 3 RINNN 4,5,12,13 GND 6 LINN 7 VOLUME 8 SE/BTL 9 LOUTP 10,15 VDD 11 LOUTN 14 ROUTN 16 ROUTP Block Diagram LINN RINN VOLUME SE/BTL SHUTDOWN Copyright ANPEC Electronics Corp. Rev. A.1 - Aug., 2008 Shutdown control pin. Pulling low the voltage on this pin shuts off the IC. In shutdown mode, the IC only draws 1 A (typical) of supply current ...

Page 13

... APA2071 Typical Application Circuit LINN L-CH Input RINN R-CH Input VOLUME 50k 100k 100k SE/BTL SE/BTL Mode Selection Shutdown SHUTDOWN Shutdown Signal circuit Copyright ANPEC Electronics Corp. Rev. A.1 - Aug., 2008 100 F 0.1 VDD GND DC Volume Control ...

Page 14

... APA2071 DC Volume Control Table_BTL Mode V o ltage Range (% in(dB) H igh(%) (%) 1 8 2.40 0 .00 17.5 4. 6.80 5 .60 16.5 9. 11.40 10.20 15.5 13.80 12. 16.00 14.60 14.5 18.20 16. 20.60 19. 22.80 21. 25.00 23. 27.40 25.80 8 29.60 28.20 6 31.80 30.40 4 34.20 32.60 2 36.40 34.80 0 38.60 37.00 -2 41.00 39.40 -4 43.20 41.60 -7 45.60 43. 47.80 46. 50.00 48. 52.40 50. 54.60 52. 56.80 55. 59.20 57. 61.40 59. 63.60 61. 66.00 64. 68.20 66. 70.40 68. 100.00 70 ...

Page 15

... APA2071 Function Description Bridge-Tied Load (BTL) Operation The APA2071’ s output stage of each channel, which con- sists of one pair of operational amplifiers, provides op- tion for BTL operation shown as figure 1. OP1 Volume Control amplifier output signal Bias Voltage Generator Figure 1: APA2071 Internal Configuration (each channel) The power amplifier’ ...

Page 16

... IC. Forward Over-Current Protection The APA2071 monitors the output current. When the cur- rent exceeds the current-limit threshold, the APA2071 turns off the output to prevent the IC from damages in over- current or short-circuit condition. When the over-current occurs in power amplifier, the output buffer’ ...

Page 17

... For example, a 330 F capacitor with an 8 speaker would nd , the attenuate low frequencies below 60.6Hz. The main is less disadvantage, from a performance standpoint, is the load BYPASS 17 , the APA2071 will enter mute condition. The DD can be calculated as blew: BYPASS 0. 130k DD Leakage BYPASS ’ s leakage cur- ...

Page 18

... F or greater near the audio power amplifier Optimizing Depop Circuitry Circuitry has been included in the APA2071 to minimize the amount of popping noise at power-up and when com- ing out of shutdown mode. Popping occurs whenever a voltage step is applied to the speaker. In order to elimi- nate clicks and pops, all capacitors must be fully dis- charged before turn-on ...

Page 19

... Copyright ANPEC Electronics Corp. Rev. A.1 - Aug., 2008 BTL Since the APA2071 is a dual channel power amplifier, the maximum internal power dissipation is 2 times that both of equations depend on the mode of operation. Even with this substantial increase in power dissipation, the APA2071 does not require extra heatsink. The power dis- ...

Page 20

... The output traces should be short, wide (>50mil), and symmetric. 3. The input trace should be short and symmetric. 4. The power trace width should be greater than 50mil. 5. The APA2071’ s GND pin should be soldered on ground plane of the PCB. Copyright ANPEC Electronics Corp. Rev. A.1 - Aug., 2008 ...

Page 21

... APA2071 Package Information DIP- MIN 0.38 A2 2.92 b 0.36 b2 1.14 c 0.20 D 19.81 D1 0. 2.92 Note : 1. Followed from JEDEC MS-001AB 2. Dimension D, D1 and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 10mil. Copyright ANPEC Electronics Corp. Rev. A.1 - Aug., 2008 ...

Page 22

... APA2071 Reflow Condition (IR/Convection or VPR Reflow Tsmax Tsmin 25 Reliability Test Program Test item SOLDERABILITY HOLT PCT TST ESD Latch-Up Classification Reflow Profiles Profile Feature Average ramp-up rate ( Preheat - Temperature Min (Tsmin) - Temperature Max (Tsmax) - Time (min to max) (ts) ...

Page 23

... APA2071 Classification Reflow Profiles (Cont.) Table 1. SnPb Eutectic Process – Package Peak Reflow Temperatures Package Thickness <2.5 mm 2.5 mm Table 2. Pb-free Process – Package Classification Reflow Temperatures Package Thickness <1.6 mm 1.6 mm – 2.5 mm 2.5 mm *Tolerance: The device manufacturer/supplier shall assure process compatibility up to and including the stated classification temperature (this means Peak reflow temperature +0 C ...

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