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Version 0.92
Date:2018-04-19
1
USB Headset/Line-in Controller
SSS1630A1
WWW.3SYSTEM.COM.TW
Solid State System Co., Ltd.
Declaration
The information contained herein is for evaluation and reference purpose only. The incorporation of such
products and information in the design of customers’ products shall be done under the full responsibility of the
customer.
Except as provided in Solid State System Co. Ltd. (“3S”) terms and conditions of sales, 3S does not make any
warranty, express or implied, including implied warranties of merchantability and fitness for a particular
purpose with respect to any 3S products, and 3S does not assume any liability for infringement of patents,
copyrights or other intellectual property rights of third parties by or arising from the use of 3S products or any
other liability arising from the use of such products.
Notice
No part of this publication may be reproduced, photocopied, or transmitted in any form, without the prior
written consent of 3S. 3S reserves the right to make change to the product specification and descriptions at any
time without notice, and to discontinue or make change to its products ant any time without notice.
Please contact a 3S representative for the application note issued by 3S to design your system in a right way.

Version 0.92
Date:2018-04-19
2
USB Headset/Line-in Controller
SSS1630A1
WWW.3SYSTEM.COM.TW
Table of Contents
1. Product Overview ……………………………………………………...
P.03
2. Product Features …………………………………………………………
P.03
3. Electric Characteristics …………………………………………..………
P.04
4. Pin Description …………………………………………………..………
P.06
5. Block Diagram and Descriptions…………………………………...……
P.10
6. U6C Application Circuit... ... …………………………………….….….
P.16
7. U6D(Q66) Application Circuit…………………………………….….….
P.17
8. Package Information…………………………………….…………….….
P.19
9. Revision History…………………………………….……………….….
P.21

Version 0.92
Date:2018-04-19
3
USB Headset/Line-in Controller
SSS1630A1
WWW.3SYSTEM.COM.TW
SSS1630A1 USB Headset/Line-in Controller Datasheet
1. Product Overview
SSS1630 is 3S highly integrated single chip USB audio controller with on chip oscillator to
save the external 12MHz crystal component for headset application. SSS1630 features support
96 KHz 24 bit sampling rate with external audio codec(24bit/96KHz I2S In&Out) and have
built-in stereo 16/24 bits ADC, stereo 16/24 bits DAC, earphone driver, five-band hardware EQ,
audio PLL, USB clock oscillator, and USB FS controller plus PHY. External 24C02~24C16
EEPROM connection provides flexibility for USB VID/PID/product string, default gain settings,
and other customized demands. SSS1630 provides a minimum BOM solution for featured USB
audio solutions,in Widows/MAC/ Android OS X.
2. Product Features
Compliant with USB specification v2.0 full speed operation
Compliant with USB audio device class specification v1.0
Support 44.1KHz/48KHz/96KHz、16bit/24bit sampling rate (EEPROM Option)
Embedded digital mixer with default mixer mute after power on (control by OS)
when mono ADC is set, both DAC channel mixed with this single ADC data
when stereo ADC is set, L-ch DAC mixes with L-ch ADC data and R-ch DAC mixes with R-ch ADC
data
ROM option for power mode setting (USB bus power 100mA:default or 500mA configuration)
Default support 96KHz sampling rate for both ADC and DAC
Embedded earphone driving with up to 16 ohm loading driving
ADC line in to DAC output data path option
Embedded I2S interface (master /slave mode) for 16/24 bit CODEC DAC/ADC (EEPROM Option)
Embedded SPDIF In&Out interface for 16/24 bit CODEC DAC/ADC (EEPROM Option)
Embedded crystaless on chip oscillator
Supports USB suspend/resume mode
Embedded USB transceiver for USB interface
For headset function, USB audio function topology has 2 input terminals, 2 output terminals, (1 mixer unit), (1
selector unit), and (3) feature units (some units can be enabled by ROM code option)
Support one control endpoint, one isochronous out endpoint, one isochronous in endpoint, one interrupt in
endpoint (HID uses interrupt in and control out)
Alternate zero bandwidth setting for releasing playback bandwidth on USB bus when this device is inactive
Volume up, volume down, playback mute, recording mute, next track, previous track, stop and play/pause pin
for direct user control
Volume up, volume down, playback mute, next track, previous track, stop and play/pause support
Two wire serial bus(I2C Bus) for external MCU control

Version 0.92
Date:2018-04-19
4
USB Headset/Line-in Controller
SSS1630A1
WWW.3SYSTEM.COM.TW
Whole EEPROM space can be accessed via MCU
Embedded e-Fuse (8x8) with crystaless oscillator setting
USB HID for host control synchronization
External serial EEPROM (24C02~24C16) interface for vendor specific USB VID, PID, product string, serial
number, default gain, default EQ setting, playback/record enable, and other options
EEPROM write function via HID or vendor specific request for mass production convenience
Preloaded VID, PID, and product string and design options with setting priority: i) external EEPROM ii)
embedded ROM
Vendor specific requests and new dummy register (10XX_10XX; where XX can be set by register write and
read back for verify) for software protect
GPIO and MCU interface register read/write via HID
Cap-less Headphone Amplifier solution (Bonding Option)
Support RGB LED (EEPROM Option)
Support HID Keyboard (EEPROM Option)
Support IIC initial for external Codec ,1byte+1byte and 2bytes+2bytes mode (EEPROM Option)
Embedded 1.8V POR
Embedded 5V to 3.3V (with 250mA capability) and 3.3V to 1.8V regulators for single external 5V power
supply
Embedded rotary encoder interface for volume control (EEPROM Option)
1.8V digital core and audio PLL operation, 3.3V USB PLL operation and ADC/DAC operation
Compatible with Win XP, Vista, Win 7, Mac OS X ,Linux OS X and Android OS X without additional driver
3. Electric Characteristics
Absolute Maximum Rating
PARAMETER
SYMBOL
VALUE
UNIT
Supply Voltage
VCC5A
-0.3 to +5.5
V
DC Input Voltage
Vin
-0.3 to +3.6
V
Operating Temperature
T
opr
0 to 80
0
C
Storage Temperature
T
stg
-20 to +120
0
C
Human Body Model ESD
HBM
4000
V
Machine Model ESD
MM
200
V
DC Characteristics
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
Regulation Supply Voltage
VCC5A
4.5
5
5.5
V
Regulation Output Voltage
VCC33
3.0
3.3
3.6
V
VCC23
2.07
2.3
2.53
V

Version 0.92
Date:2018-04-19
5
USB Headset/Line-in Controller
SSS1630A1
WWW.3SYSTEM.COM.TW
VCC18
1.62
1.8
1.98
V
Regulation Driving Capability
REGdrv33
250
mA
REGdrv23
1
mA
REGdrv18
70
mA
Audio PLL Supply Voltage
APLL_VCCP3
3.0
3.3
3.6
V
APLL_VCCPD
1.62
1.8
1.98
V
Audio PLL output Voltage
APLL_VCCP18
1.62
1.8
1.98
V
CODEC Supply Voltage
PWRPD
3.0
3.3
3.6
V
PWRP
3.0
3.3
3.6
V
PWRP_LPF
3.0
3.3
3.6
V
Earphone Driver Supply Voltage
NVDD
3.0
3.3
3.6
V
eFuse Program Power input
FSOURCE
3.42
3.8
4.18
V
IO Supply Voltage
VCCIO
3.0
3.3
3.6
V
IO Input Voltage
Vin
-0.3
3.3
3.6
V
Core Supply Voltage
VCCK
1.62
1.8
1.98
V
AC Characteristics
Headphone Output (A-Weighted)
PARAMETER
CONDITION
MIN.
TYP.
MAX.
UNIT
Pmax Output power @1% THD+N
RL = 32 Ω, VCC33A = 3.3 V
--
14
--
mW
RL = 16 Ω, VCC33A = 3.3 V
--
28
--
mW
SNR (Signal-to-noise ratio)
Idle channel
--
-86
--
dB
mute
--
-94
dB
THD+N Total harmonic distortion
1KHz @ -3dB; 32Ω load
--
-75
--
dB
1KHz @ -3dB; 16Ω load
--
-74
--
dB
Microphone Input Characteristics
SYMBOL
PARAMETER
MIN
TYP
MAX
UNIT
AMP
Microphone gain amplification
-7.5
+39
dB
GSTEP
ADC gain step
1.5
dB
DR
Dynamic range @ 997Hz -60dB FS gain = 0dB
83
dB
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