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參數(shù)資料
| 型號(hào)： | TEA0675T-T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類(lèi)： | 噪聲抑制 |
| 英文描述： | B Type, DOLBY NOISE REDUCTION IC, PDSO24 |
| 封裝： | 7.50 MM, PLASTIC, MS-013AD, SOT-137-1, SOP-24 |
| 文件頁(yè)數(shù)： | 30/32頁(yè) |
| 文件大?。?/td> | 225K |
| 代理商： | TEA0675T-T |
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1996 Jun 07
7
Philips Semiconductors
Preliminary specication
Dual Dolby* B-type noise reduction circuit
for playback applications
TEA0675
Vref VOUT
DC output offset voltage
at pins OUTA and OUTB
NR off; pins INA1, INA2,
INB1 and INB2 connected
to Vref
0.15
+0.15
V
IO
DC output current
pin OUTA to ground
2
mA
pin OUTB to VCC
0.3
mA
Zo
output impedance
80
100
Vno(rms)
equivalent input noise
voltage (RMS value)
NR off; unweighted;
f = 20 Hz to 20 kHz;
Rsource =0
0.7
1.4
V
VTD
AMS timing (DC level)
resistor Rt connected to
pin TD
VCC 3
VCC
V
EMC
DC offset voltage at
pins OUTA and OUTB
f = 900 MHz; Vi(rms)=6V;
see Figs 26, 27 and 28
40
mV
Switching thresholds
VNROFF
voltage at HPB (pin 21)
NR off
0.19VCC
0.23VCC
0.25VCC
V
INROFF
output current
NR off
0.7
1mA
INRON
input current
NR on
open
200
nA
VHPB(max)
maximum voltage
0.75VCC
V
HPA (PIN 4)
VAMSlON
pin voltage
AMS-latch on
0.19VCC
0.23VCC
0.25VCC
V
IAMSlON
output current
0.7
1mA
VAMSsON
pin voltage
AMS-scan on
0.75VCC
0.77VCC
0.81VCC
V
IAMSsON
input current
0.8
1
mA
IAMSOFF
pin current
AMS off
open
200
nA
VHPA(max)
maximum voltage
0.75VCC
V
AMSEQ (PIN 19)
AMS output (AMS mode)
VOH
HIGH level output voltage
4
4.6
5
V
IOH1
HIGH level output current
note 1
+10
150
A
IOH2
HIGH level output current
note 1
+0.01
1mA
td
minimum pulse width;
delay time range
see Table 1
23 to 160
ms
VOL
LOW level output voltage
0.1
0.7
V
IOL
LOW level output current
0.02
+1
mA
tr
minimum pulse width rise
time
AMS-scan mode
2
6
10
ms
AMS-latch mode
130
150
170
ms
AM/P
signal level at output for
AMS switching
music to pause
AMS mode; f = 10 kHz;
note 2; see Fig.24
25
22
19
dB
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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