SA58670A NXP Semiconductors, SA58670A Datasheet

SA58670A

Manufacturer Part Number
SA58670A
Description
Manufacturer
NXP Semiconductors
Datasheet
1. General description
2. Features
3. Applications
The SA58670A is a stereo, filter-free class-D audio amplifier which is available in an
HVQFN20 package with the exposed Die Attach Paddle (DAP).
The SA58670A features independent shutdown controls for each channel. The gain may
be set at 6 dB, 12 dB, 18 dB or 24 dB with gain select pins G0 and G1. Improved immunity
to noise and RF rectification is increased by high PSRR and differential circuit topology.
Fast start-up time and small package makes it an ideal choice for both cellular handsets
and PDAs.
The SA58670A delivers 1.4 W/channel at 5.0 V and 720 mW/channel at 3.6 V into 8 . It
delivers 2.1 W/channel at 5.0 V into 4 . The maximum power efficiency is excellent at
70 % to 74 % into 4
short-circuit shutdown protection.
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SA58670A
2.1 W/channel stereo class-D audio amplifier
Rev. 02 — 23 October 2008
Output power:
Supply voltage: 2.5 V to 5.5 V
Independent shutdown control for each channel
Selectable gain: 6 dB, 12 dB, 18 dB and 24 dB
High SVRR: 77 dB at 217 Hz
Fast start-up time: 3.5 ms
Low supply current
Low shutdown current
Short-circuit and thermal protection
Space savings with 4 mm
Low junction to ambient thermal resistance of 24 K/W with exposed DAP
Wireless and cellular handset and PDA
Portable DVD player
USB speaker
Notebook PC
Portable radio and gaming
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N
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2.1 W/channel into 4
1.4 W/channel into 8
720 mW/channel into 8
and 84 % to 88 % into 8 . The SA58670A provides thermal and
at 5.0 V
at 5.0 V
4 mm HVQFN20 package
at 3.6 V
Product data sheet

Related parts for SA58670A

SA58670A Summary of contents

Page 1

... RF rectification is increased by high PSRR and differential circuit topology. Fast start-up time and small package makes it an ideal choice for both cellular handsets and PDAs. The SA58670A delivers 1.4 W/channel at 5.0 V and 720 mW/channel at 3.6 V into delivers 2.1 W/channel at 5.0 V into 4 . The maximum power efficiency is excellent into 4 short-circuit shutdown protection ...

Page 2

... ADJUST INLN SDR 300 k BIAS CIRCUITRY 7 SDL 300 k Refer to Table 6 for gain selection. Block diagram Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifi PVDD 14 OUTRP H- PWM 11 OUTRN BRIDGE INTERNAL GND OSCILLATOR 2 OUTLP H- PWM 5 OUTLN ...

Page 3

... Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifi OUTRP SA58670ABS 13 PVDD 12 PGND (1) 11 OUTRN 002aad664 © NXP B.V. 2008. All rights reserved ...

Page 4

... PVDD and pin AVDD. Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifier [1] Min 0.3 0.3 GND GND 0 ...

Page 5

... measured differentially; inputs AC grounded dB; v( 0.35 V SDR SDL Rev. 02 — 23 October 2008 SA58670A Min Typ Max Unit 2 1000 0 0 ...

Page 6

... Hz v( 217 Hz DD v(cl v(cl v(cl v(cl v( kHz; DD inputs are AC grounded no weighting A weighting Rev. 02 — 23 October 2008 SA58670A Min Typ Max Unit - ...

Page 7

... 3 5 Total harmonic distortion-plus-noise as a function of output power; R Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifier 001aah484 (1) (2) ( (W) o 001aah485 (1) (2) ( (W) o © ...

Page 8

... 3 5 Total harmonic distortion-plus-noise as a function of output power; R Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifier 001aah486 (1) (2) ( (W) o 001aah487 (1) (2) ( (W) o © ...

Page 9

... V = 600 mV (RMS mW 424.3 mV (RMS dB. v(cl) Total harmonic distortion-plus-noise as a function of frequency; V Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifier 001aah488 (Hz) 001aah489 (Hz) © NXP B.V. 2008. All rights reserved. ...

Page 10

... V = 616.4 mV (RMS dB. v(cl) Total harmonic distortion-plus-noise as a function of frequency; V Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifier 001aah490 (Hz) 001aah491 (Hz) © NXP B.V. 2008. All rights reserved. ...

Page 11

... V (RMS 380 mW 871.8 mV (RMS dB. v(cl) Total harmonic distortion-plus-noise as a function of frequency; V Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifier 001aah492 (Hz) 001aah493 (Hz) © NXP B.V. 2008. All rights reserved. ...

Page 12

... Noise output voltage (RMS value function of frequency Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifier 001aah495 (Hz) 001aah497 3 10 © NXP B.V. 2008. All rights reserved (Hz ...

Page 13

... (1) (2) 100 (3) 120 Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifier (1) (2) ( 001aah505 (kHz) 001aah506 (kHz) © NXP B.V. 2008. All rights reserved ...

Page 14

... V (mA (V) SDR; SDL Fig 12. Supply current as a function of supply voltage 001aah509 (mA) 1.2 1.6 2.0 P (W) o Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifier 5 4.5 3.5 2.5 2.5 3.5 4.5 (1) left channel (2) right channel (3) right channel 800 ...

Page 15

... Fig 15. Output power efficiency as a function of output power SA58670A_2 Product data sheet 001aah511 (1) 1.2 1.6 2.0 P (W) o 001aah513 (1) 1.2 1.6 2.0 P (W) o Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifier 0.4 P (W) 0.3 0.2 (2) 0.1 ( 0.4 0 100 po 80 (3) ( ...

Page 16

... Equivalent Series Resistance (ESR) capacitor of typically placed as close as possible to the PVDD pins of the SA58670A important to place the decoupling capacitor at the supply voltage pins of the SA58670A because any resistance or inductance in the PCB trace between the SA58670A and the capacitor can cause a loss in effi ...

Page 17

... SA58670A. Placing decoupling capacitors directly at the power supply voltage pins increases efficiency because the resistance and inductance in the trace between the SA58670A power supply voltage pins and the decoupling capacitor causes a loss in power efficiency. The trace width and routing are also very important for power output and noise considerations ...

Page 18

... V supply, the maximum ambient temperature is calculated using – max th j-a max load. If the junction temperature of the SA58670A rises above 150 C, the further enhances thermal performance and battery lifetime by INxP AP585 AUDIO DUT ANALYZER INxN + POWER SUPPLY Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifi ...

Page 19

... 2.5 scale (1) ( 4.1 2.45 4.1 2.45 0.5 2 3.9 2.15 3.9 2.15 REFERENCES JEDEC JEITA MO-220 - - - Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifi detail 0.6 0.05 0.1 2 0.1 0.05 0.4 EUROPEAN PROJECTION SOT917 ISSUE DATE ...

Page 20

... Solder bath specifications, including temperature and impurities SA58670A_2 Product data sheet 2.1 W/channel stereo class-D audio amplifier Rev. 02 — 23 October 2008 SA58670A © NXP B.V. 2008. All rights reserved ...

Page 21

... Lead-free process (from J-STD-020C) Package reflow temperature ( C) 3 Volume (mm ) < 350 260 260 250 Figure 19. Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifier Figure 19) than a SnPb process, thus 350 220 220 350 to 2000 > 2000 260 260 250 245 ...

Page 22

... Universal Serial Bus Data sheet status Product data sheet characteristics”: specification DD(sd) Product data sheet Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifier peak temperature Change notice Supersedes - SA58670A_1 - - © NXP B.V. 2008. All rights reserved. time 001aac844 ...

Page 23

... Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. http://www.nxp.com salesaddresses@nxp.com Rev. 02 — 23 October 2008 SA58670A 2.1 W/channel stereo class-D audio amplifier © NXP B.V. 2008. All rights reserved ...

Page 24

... Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2008. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com SA58670A All rights reserved. Date of release: 23 October 2008 Document identifier: SA58670A_2 ...

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