SA58635 NXP Semiconductors, SA58635 Datasheet

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SA58635

Manufacturer Part Number
SA58635
Description
Manufacturer
NXP Semiconductors
Datasheet
1. General description
2. Features
The SA58635 is a stereo, class-G headphone driver with I
I
channel enable and mute control.
The output of the SA58635 is referenced around true ground zero. It is designed to
operate at the low supply current of 1.5 mA making it battery friendly. A unique power
management technique provides class-G power efficiency by using a buck converter to
step down the battery supply from a typical lithium ion battery (4.8 V to 2.3 V). Efficiency is
further increased by allowing the output amplifier/driver to operate at multiple voltage rails
based on the output/input swing.
The SA58635 delivers 2 × 25 mW minimum into 16 Ω and 32 Ω loads. The SA58635
provides thermal shutdown and self limiting current protection.
The SA58635 is a high fidelity HP driver amplifier with a S/N of 100 dB minimum. An
excellent PSRR of more than 100 dB, differential input circuit topology allows for
maximum noise immunity in the noisy mobile phone environment.
The SA58635 is available in a 16-bump WLCSP (Wafer Level Chip-Size Package) making
it ideal choice for cellular handsets and portable media players.
2
C-bus control allows maximum flexibility with digital volume control, independent
SA58635
2 × 25 mW class-G stereo headphone driver with I
volume control
Rev. 01 — 26 March 2010
Power supply range: 2.3 V to 5.5 V
High efficiency employing class-G dynamic power management
2 × 25 mW into 16 Ω or 32 Ω at THD+N = 1 %
Very low THD+N at 0.02 % at V
Integrated charge pump to eliminate DC blocking capacitors, reduce cost and PCB
space while improving low frequency audio fidelity
Excellent PSRR: > 100 dB
S/N performance of 100 dB minimum
Low supply current: 1.5 mA typical
Low shutdown current: 5 μA maximum
I
mute and software shutdown
Self limiting current with thermal protection and ground loop noise suppression
Pop-and-click suppression
Available in 1.7 mm × 1.7 mm 16-bump WLCSP
2
C-bus interface for −59 dB to ±4 dB volume control, independent channel enable,
O
of 0.7V
o(RMS)
and R
L
2
of 47 Ω
C-bus volume control. The
Product data sheet
2
C-bus

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SA58635 Summary of contents

Page 1

... The SA58635 delivers 2 × minimum into 16 Ω and 32 Ω loads. The SA58635 provides thermal shutdown and self limiting current protection. The SA58635 is a high fidelity HP driver amplifier with a S/N of 100 dB minimum. An excellent PSRR of more than 100 dB, differential input circuit topology allows for maximum noise immunity in the noisy mobile phone environment ...

Page 2

... SW HPVDD AVDD BUCK CONVERTER INLP INLN CLASS-G CONTROL INRP INRN HPVSS CHARGE PUMP CPN CPP Block diagram of SA58635 Rev. 01 — 26 March 2010 SA58635 2 × class-G stereo headphone driver THERMAL/SHORT-CIRCUIT PROTECTION SA58635 2 VOLUME I C-BUS CONTROL INTERFACE 002aad931 AGND © NXP B.V. 2010. All rights reserved. ...

Page 3

... D1 I C-bus serial data C-bus serial clock D3 headphone right channel output D4 right channel negative differential input Rev. 01 — 26 March 2010 SA58635 2 × class-G stereo headphone driver AVDD OUTL B AGND CPP HPVDD C CPN ...

Page 4

... When a reset of the I the General Call address followed by a write of the reset command (0000 0110b). When a General Call reset command is sent by the master, the SA58635 will respond with an acknowledge and execute a reset to the digital logic. This will return the register set and the volume controls to the Power-On Reset (POR) values ...

Page 5

... R HIZR R Rev. 01 — 26 March 2010 SA58635 2 × class-G stereo headphone driver Description Left channel inactive. A zero will turn off the left channel. Left channel active. Right channel inactive. A zero will turn off the right channel. Right channel active. ...

Page 6

... Symbol Access Value - R/W 00h* Rev. 01 — 26 March 2010 SA58635 2 × class-G stereo headphone driver Description This is the supplier identification for this device, indicating that this device is manufactured by NXP Semiconductors. Unused; always returns 0. These bits indicate the version number for this device ...

Page 7

... Volume control Volume levels are set in the VOLCTL register (register 02h) as described in As the volume is changed including muting and un-muting, the SA58635, will step to the new value at an incremental (or decremental) rate of approximately one millisecond per step. A full sweep from 00h to 1Fh will take roughly 32 milliseconds. The VOLCTL register values represent a gain on the output channels as indicated in Table 9 ...

Page 8

... NXP Semiconductors 7.5 Power-on reset When power is applied to AVDD, an internal power-on reset holds the SA58635 in a reset condition until AVDD has reached V the SA58635 registers and I (all zeroes) causing all the channels to be deselected. Thereafter, AVDD must be lowered below 0 reset the device. ...

Page 9

... START condition 2 Acknowledgement on the I C-bus Rev. 01 — 26 March 2010 2 × class-G stereo headphone driver 6). MASTER MASTER TRANSMITTER/ MULTIPLEXER RECEIVER SLAVE not acknowledge acknowledge 2 8 clock pulse for acknowledgement SA58635 2 I C-BUS 002aaa966 9 002aaa987 © NXP B.V. 2010. All rights reserved ...

Page 10

... Rev. 01 — 26 March 2010 2 × class-G stereo headphone driver (1) data for register D[5:0] A acknowledge acknowledge from slave from slave condition 002aad612 software reset acknowledge from slave STOP condition 002aae118 SA58635 A P STOP © NXP B.V. 2010. All rights reserved ...

Page 11

... IEC61000-4-2 level 4, contact IEC61000-4-2 level 4, air discharge Figure 10). Figure 10). SA58635 OUTR A1 SGND ESD ASIP OUTL C1 IP5311CX5/LF AGND Rev. 01 — 26 March 2010 SA58635 Min Max −0.3 +6.0 −0.3 +6.0 −0.3 2.1 − 0 AGND DD [2] - 200 - 1000 - 550 ...

Page 12

... differential high-impedance mode <40 kHz 6 MHz 36 MHz SDA output 0 3 SCL, SDA SCL, SDA SCL, SDA SCL, SDA (mA 2.5 3.5 Rev. 01 — 26 March 2010 SA58635 [1] Min Typ Max 2.3 - 5 −1.3 - +1 0.5 3 100 - - 500 ...

Page 13

... Rev. 01 — 26 March 2010 2 × class-G stereo headphone driver [1] Min Typ 2 × 2.5 - 4.5 - 6.5 0. 100 - - 180 - 35 60 ( 2.5 3.5 4 Ω; in phase L SA58635 Max Unit - mW 3.5 mA 5 μ °C - °C - 002aaf026 5.5 V (V) DD © NXP B.V. 2010. All rights reserved ...

Page 14

... (2) 60 (1) ( THD out of phase Ω kHz SA58635 002aaf028 002aaf030 (mW) o(tot) © NXP B.V. 2010. All rights reserved ...

Page 15

... Fig 16. RMS output voltage versus supply voltage 002aaf033 0 output amplitude (dBV 120 150 (Hz) Fig 18. Output amplitude versus frequency Rev. 01 — 26 March 2010 SA58635 (3) (4) (2) (1) 3.5 4 kHz; THD Ω Ω 600 Ω L 1000 Ω ...

Page 16

... Rev. 01 — 26 March 2010 2 × class-G stereo headphone driver 2 10 (%) 5 3 Ω kHz 002aaf010 (1) ( (W) o SA58635 002aaf012 (W) o © NXP B.V. 2010. All rights reserved ...

Page 17

... R DD 002aaf015 1 THD+N (%) ( (Hz Rev. 01 — 26 March 2010 SA58635 002aaf014 (3) (2) ( (Hz Ω 2.5 V) 002aaf016 (2) (3) ( (Hz Ω 3.6 V) © NXP B.V. 2010. All rights reserved. ...

Page 18

... THD+N (%) (Hz) (1) P ( Rev. 01 — 26 March 2010 SA58635 002aaf018 (2) (1) ( (Hz channel channel channel Ω © NXP B.V. 2010. All rights reserved. 5 ...

Page 19

... Ω kHz 200 mV i(p-p) Based on single channel 1 demo board only. Rev. 01 — 26 March 2010 SA58635 2 × class-G stereo headphone driver 002aaf035 vertical scale = 100 mV/div horizontal scale = 2 ms/div time (ms) 002aaf036 vertical scale = 100 mV/div horizontal scale = 2 ms/div time (ms ...

Page 20

... Input filters on the SDA and SCL inputs suppress noise spikes less than 50 ns. SA58635_1 Product data sheet 2 C-bus Conditions . f Rev. 01 — 26 March 2010 SA58635 2 × class-G stereo headphone driver Standard-mode Fast-mode C-bus I C-bus Min Max ...

Page 21

... SA58635 SGND AGND CPN SCL SDA 2 C-bus is the value of the input coupling capacitors. The input the SA58635 is a function of amplifier gain; it will vary from i Rev. 01 — 26 March 2010 SA58635 2 × class-G stereo headphone driver A1 A2 ESD B2 ASIP C1 C2 ...

Page 22

... Rev. 01 — 26 March 2010 SA58635 2 × class-G stereo headphone driver Equation 1: © NXP B.V. 2010. All rights reserved. ( ...

Page 23

... Equation 1 i 13.3 PCB layout considerations Component location is very important for performance of the SA58635. Place all external components very close to the device. Placing decoupling capacitors directly at the power supply pins increases efficiency because the resistance and inductance in the trace between the device power supply pins and the decoupling capacitor causes a loss in power efficiency ...

Page 24

... Dimensions Unit max 0.615 0.23 0.385 0.29 mm nom 0.560 0.20 0.360 0.26 min 0.505 0.17 0.335 0.23 Outline version IEC SA58635UK Fig 26. Package outline SA58635UK (WLCSP16) SA58635_1 Product data sheet 0.5 scale ...

Page 25

... Product data sheet Lead-free process (from J-STD-020C) Package reflow temperature (°C) 3 Volume (mm ) < 350 260 260 250 Figure 27. Rev. 01 — 26 March 2010 SA58635 2 × class-G stereo headphone driver Figure 27) than a PbSn process, thus Table 15. 350 to 2000 > 2000 260 260 250 245 245 245 © ...

Page 26

... Product data sheet maximum peak temperature = MSL limit, damage level temperature minimum peak temperature = minimum soldering temperature MSL: Moisture Sensitivity Level Rev. 01 — 26 March 2010 SA58635 2 × class-G stereo headphone driver peak temperature © NXP B.V. 2010. All rights reserved. time 001aac844 ...

Page 27

... ElectroStatic Discharge Equivalent Series Resistance FeedBack HeadPhone Inter-integrated Circuit bus Personal Computer Printed-Circuit Board Data sheet status Product data sheet Rev. 01 — 26 March 2010 SA58635 2 × class-G stereo headphone driver Change notice Supersedes - - © NXP B.V. 2010. All rights reserved ...

Page 28

... In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without NXP Semiconductors’ warranty of the Rev. 01 — 26 March 2010 SA58635 2 × class-G stereo headphone driver © NXP B.V. 2010. All rights reserved ...

Page 29

... Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners C-bus — logo is a trademark of NXP B.V. http://www.nxp.com salesaddresses@nxp.com Rev. 01 — 26 March 2010 SA58635 2 × class-G stereo headphone driver © NXP B.V. 2010. All rights reserved ...

Page 30

... For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com SA58635 2 × class-G stereo headphone driver Legal information . . . . . . . . . . . . . . . . . . . . . . 28 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 28 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Contact information . . . . . . . . . . . . . . . . . . . . 29 Contents Date of release: 26 March 2010 Document identifier: SA58635_1 All rights reserved. ...

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