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TEA0679のメーカーはNXP Semiconductorsです、この部品の機能は「I2C-bus controlled dual Dolby* B-type noise reduction circuit for playback applications」です。 |
部品番号 | TEA0679 |
| |
部品説明 | I2C-bus controlled dual Dolby* B-type noise reduction circuit for playback applications | ||
メーカ | NXP Semiconductors | ||
ロゴ | |||
このページの下部にプレビューとTEA0679ダウンロード(pdfファイル)リンクがあります。 Total 30 pages
INTEGRATED CIRCUITS
DATA SHEET
TEA0679T
I2C-bus controlled dual Dolby*
B-type noise reduction circuit for
playback applications
Product specification
Supersedes data of 1998 Jun 24
File under Integrated Circuits, IC01
1998 Nov 12
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output B
10 µF
BEN SDA SCL DGND AMS OUTB
32 31 30 29 28 27
330 nF
(±10%)
270 kΩ
(±10%)
INTB
26
100 nF
(±10%)
180 kΩ
(±10%)
CONTRB
25
15 nF
(±5%)
HPB
24
4.7 nF
(±5%)
24 kΩ
(±2%)
SCB
23
2.7 kΩ 10 µF
390 kΩ
8.2
nF
5.6
kΩ
EQB
22
EQFB AGND
21 20
470 470
pF pF
HS
(opt)
INB1
HS
19 18
INB2
17
I2C-BUS
DOLBY B
MUTE
LATCH
AND
RISE TIME
AMS
PROCESSOR
DELAY
TIME
LEVEL
DETECTOR
BLANK
SKIP
EQ
AMP
LOGIC
PRE
AMP
POWER
SUPPLY
TEA0679T
DOLBY B
EQ
AMP
PRE
AMP
12
3
MAD BSC TD
456
BTC EQS OUTA
Rt
(ref) EQS
(opt)
220 nF
47 nF
7
INTA
89
CONTRA HPA
270 kΩ
(±10%)
330 nF
(±10%)
180 kΩ
(±10%)
100 nF
(±10%)
15 nF
(±5%)
output A
10 µF
10
SCA
4.7 nF
(±5%)
24 kΩ
(±2%)
11
EQA
12
EQFA
13
VCC
5.6
kΩ
8.2
nF
390 kΩ
2.7 kΩ 10 µF
14 15
INA1
Vref
16
INA2
100
µF
470 470
pF pF
MHB117
Fig.1 Block and application diagram.
3Pages Philips Semiconductors
I2C-bus controlled dual Dolby* B-type noise
reduction circuit for playback applications
Product specification
TEA0679T
I2C-bus operation mode
The IC is capable of operating with I2C-bus systems that provide either 5 V or digital supply voltage related logic levels
below 5 V. This is achieved using the bus enable (pin 32) with different input voltages. An open pin or input voltages
above 5 V enable 5 V related I2C-bus logic levels. If input voltages between 3 and 5 V are used the IC operates with
I2C-bus logic levels related to these input voltages. To disable the I2C-bus receiver it is necessary to use pin voltages
below the specified LOW level.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
VCC
Vi
Vi(n1)
Vi(n2)
Vi(stb)
tsc
Tstg
Tamb
Ves
PARAMETER
CONDITIONS
supply voltage
input voltage (pins 1 to 32) except pin 5 (EQS),
pin 15 (Vref), pin 18 (HS), pin 30 (SCL) and pin 31
(SDA) to VCC
input voltage at pin 30 (SCL) and pin 31 (SDA)
input voltage at pin 5 (EQS) and pin 18 (HS)
standby input voltage at pin 1 (MAD), pin 32 (BEN), note 1
pin 5 (EQS) and pin 18 (HS)
pin 15 (Vref) to VCC short-circuiting duration
storage temperature
operating ambient temperature
electrostatic handling voltage for all pins
note 2
note 3
MIN.
0
−0.3
−0.3
−0.3
−0.3
−
−55
−40
−2
−500
MAX.
14
VCC
UNIT
V
V
+12
+6.5
+6.5
5
+150
+85
+2
+500
V
V
V
s
°C
°C
kV
V
Notes
1. The TEA0679T allows a HIGH level at switching pins without voltage (VCC = 0; standby mode). This means a
maximum input voltage of 6.5 V for the switching pins.
2. Human body model (1.5 kΩ; 100 pF).
3. Machine model (0 Ω; 200 pF).
THERMAL CHARACTERISTICS
SYMBOL
Rth(j-a)
PARAMETER
thermal resistance from junction to ambient
CONDITIONS
in free air
VALUE
62
UNIT
K/W
1998 Nov 12
6
6 Page | |||
ページ | 合計 : 30 ページ | ||
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PDF ダウンロード | [ TEA0679 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
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