參數(shù)資料
型號(hào): TDA8425
廠商: NXP SEMICONDUCTORS
元件分類(lèi): 音頻控制
英文描述: Hi-Fi stereo audio processor;IIC-bus(IIC總線 高保真立體聲音頻處理器)
中文描述: 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDIP20
封裝: PLASTIC, DIP-20
文件頁(yè)數(shù): 12/24頁(yè)
文件大小: 285K
代理商: TDA8425
October 1988
12
Philips Semiconductors
Product specification
Hi-fi stereo audio processor; I
2
C-bus
TDA8425
Total harmonic distortion
(f = 20 Hz to 12.5 kHz)
for V
i(rms)
= 0.3 V;
gain = +6 dB to
40 dB
for V
i(rms)
= 0.6 V;
gain = 0 dB to
40 dB
for V
i(rms)
= 2.0 V;
gain =
12 dB to
40 dB
Channel separation at 10 kHz
gain = 0 dB
Ripple rejection (gain = 0 dB;
bass and treble in linear position)
f
ripple
= 100 Hz
Crosstalk attenuation from logic
inputs to AF outputs (gain = 0 dB;
bass and treble in linear position)
THD
0.05
%
THD
0.07
0.4
%
THD
0.1
%
α
cs
80
dB
RR
100
50
dB
α
L
100
dB
VOLUME CONTROL
For truth table see Table 6
Control range at f = 1 kHz (36 steps)
maximum voltage gain (6 dB step)
minimum voltage gain (
64 dB step)
mute position
Gain tracking error; balance in mid-position
Step resolution
gain from 6 dB to
40 dB
gain from
42 dB to
64 dB
G
max
G
min
G
mute
G
5
63
80
6
64
90
2
dB
dB
dB
dB
G
step
G
step
1.5
1.0
2.0
2.0
2.5
3.0
dB/step
dB/step
TREBLE CONTROL
For truth table see Table 8
Control range
for C
8-5
; C
14-5
= 5.6 nF
Maximum emphasis at 15 kHz with
respect to linear position
Maximum attenuation at 15 kHz with
respect to linear position
Resolution
G
11
12
13
dB
G
G
step
11
2.5
12
3.0
13
3.5
dB
dB/step
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
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