SB3229 반도체 회로 부품 판매점
Preconfigured DSP System
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 ON Semiconductor |
RHYTHM SB3229
Preconfigured DSP System
for Hearings Aids
Description
The RHYTHMt SB3229 hybrid from ON Semiconductor is
a trimmer−configurable DSP system based on a four−channel
compression circuit featuring a feedback cancellation algorithm.
Based on a phase cancellation method, SB3229’s adaptive feedback
reduction algorithm provides added stable gain to enable extra gain
and user comfort. It features rapid adjustment for dynamic feedback
situations and resistance to tonal inputs.
In addition to these adaptive algorithms, SB3229 also supports the
following features: up to four channel WDRC, low−distortion
compression limiting, cross fading between audio paths for click−free
memory changes, eight−band graphic equalizer, eight configurable
generic biquad filters, programming speed enhancements, in−channel
squelch to attenuate microphone and circuit noise in quiet
environments, optional peak clipping, flexible compression
adjustments, volume control, rocker switch, noise generation for
Tinnitus treatment, and industry−leading security features to avoid
cloning and software piracy.
A trimmer interface supports manual circuit configuration. It
continuously monitors trimmer positions and translates them into
the hearing−aid parameters of choice. A Serial Data or I2C Interface
provides full programmability at the factory and in the field.
The SB3229 hybrid contains a 256 kbit EEPROM intended for
programmable and trimmer based devices.
Features
• Adaptive Feedback Cancellation
• WDRC Compression with Choice of 1, 2 or 4 Channels of
Compression
• Auto Telecoil with Programmable Delay
• EVOKE LITEt Acoustic Indicators
• Noise Generator for Tinnitus Treatment or In−Situ Audiometry
• Frequency Response Shaping with Graphic EQ
• Trimmer Compatibility – Four Three−Terminal Trimmers with
Configurable Assignments of Control Parameters
• I2C and SDA Programming
• Rocker Switch Support for Memory Change and/or Volume Control
Adjustment
• Support for Active Hi or Active Lo Switching
• Analog or Digital Volume Control with Programmable Range
• High Quality 20−bit Audio Processing
• High Power/High Gain Capability
• SOUNDFIT Fitting Software
• Configurable Low Battery Indicator
www.onsemi.com
25 PAD
HYBRID
CASE 127DN
PAD CONNECTION
VIN2 17
TIN 16
DAI 15
VC 14
D_VC 13
SDA 12
CLK 11
18
VIN1
19
TR4
20
TR3
21
TR2
22
TR1
23
N/C
25 24
1 VREG
2 MGND
3 GND
4 PGND
5 OUT+
6 OUT−
7 VBP
MS1 10
9
8
MS2
(Bottom View)
VB
MARKING DIAGRAM
SB3229−E1
XXXXXX
SB3229 = Specific Device Code
E1 = RoHS Compliant Hybrid
XXXXXX = Work Order Number
ORDERING INFORMATION
See detailed ordering and shipping information on page 13 of
this data sheet.
© Semiconductor Components Industries, LLC, 2014
November, 2014 − Rev. 5
1
Publication Order Number:
SB3229/D
RHYTHM SB3229
• Eight Biquadratic Filters
• 16 kHz or 8 kHz Bandwidth
• Four Fully Configurable Memories with Audible
Memory Change Indicator
• 96 dB Input Dynamic Range with HRXt Headroom
Extension
• 128−bit Fingerprint Security System and Other Security
Features to Protect Against Device Cloning and
Software Piracy
• High Fidelity Audio CODEC
• Soft Acoustic Fade between Memory Changes
• Drives Zero−Bias Two−Terminal Receivers
• E1 RoHS−compliant Hybrid
• Hybrid Typical Dimensions:
0.220 x 0.125 x 0.060 in
(5.59 x 3.18 x 1.52 mm)
• These Devices are Pb−Free and are RoHS Compliant
BLOCK DIAGRAM
VREG 1
REGULATOR
MIC1 18
MIC2 17
TIN 16
DAI 15
A/D
A/D
MGND 2
SB3229
MS2
9
MS1
10
SDA CLK
12 11
MIC / TELECOIL
COMPENSATION
PROGRAMMING
INTERFACE
FEEDBACK
CANCELLER
TONE
GENERATOR
+ PRE BIQUAD FILTERS POST BIQUAD FILTERS
1−4 3 & 4
CROSS
FADER
1, 2 or 4 CHANNEL
WDRC
AGC−O
EVOKE
POST BIQUAD FILTERS
1&2
VC GAIN
WIDEBAND GAIN
TRIMMER/VC INTERFACE
13
D_VC
14 22 21 20 19
VC TR1 TR2 TR3 TR4
NOISE GENERATOR BIQUAD 1−4
Figure 1. Hybrid Block Diagram
VB
8
7 VBP
PEAK
CLIPPING
D/A
HBRIDGE
5 OUT+
6 OUT −
4 PGND
3
GND
www.onsemi.com
2
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PDF 파일 내의 페이지 : 총 17 페이지
제조업체: ON Semiconductor
( onsemi )
SB3229 data
데이터시트 다운로드 :
[ SB3229.PDF ]
[ SB3229 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
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