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參數(shù)資料
| 型號(hào)： | TDA7553 |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | DIGITAL SIGNAL PROCESSING IC FOR SPEECH AND AUDIO APPLICATIONS |
| 中文描述： | 數(shù)字信號(hào)和音頻應(yīng)用語(yǔ)音處理IC |
| 文件頁(yè)數(shù)： | 9/12頁(yè) |
| 文件大小： | 118K |
| 代理商： | TDA7553 |
audio amp (optional)
spkr
mic preamp
T
T
D
D
A
A
7
7
5
5
5
5
1
1
F
F
L
L
A
A
S
S
H
H
b
b
a
a
n
n
k
k
Controller
EMI
Pass-phrases can reside here
to external world
slave I
2
C
ADC
DAC
Up to
4 MB
service request
Figure 2.
TDA7551
SV208 Speaker Verification solution
The TDA7551 is a single-chip solution for speaker verification, featuring the Lernout & Hauspie SV208
verification engine. Pass-phrases can be stored by performing an enrollment (the pass-phrase must be
repeated three times), then the incoming prompt can be compared with the pre-stored pass-phrase to
verify the speaker identity.
Known password speaker recognition
Noise-robust recognition of isolated words
Enrollment phase
The speaker associates his identity to an utterance, which must last
from 1 to 2 seconds, and reapeat it three times; the algorithm performs
an analysis and accepts or rejects the enrollment phase.
Verification phase
The claimed identity of the speaker is compared with the result of the
verification phase, in which the input prompt is compared with the
selected pass-phrase.
Management of the verification engine is accomplished through an I
2
C
protocol: the TDA7551 appears as a slave I
2
C device.
Control through I
2
C
Sample rate:
8 kHz
Equal error rate:
> 94%
TDA7550R - TDA7550 - TDA7551 - TDA7552 - TDA7553
9/12
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| TDA7555 | 功能描述:音頻 DSP RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
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| TDA7560 | 功能描述:音頻放大器 AMPLIFIER RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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| TDA7560A | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 x 45 W quad bridge car radio amplifier |
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