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| 型號： | TEA5777HL/N2,118 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP32 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-358-1, LQFP-32 |
| 文件頁數(shù)： | 32/47頁 |
| 文件大?。?/td> | 219K |
| 代理商： | TEA5777HL/N2,118 |
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TEA5777_1
Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 01 — 11 April 2006
38 of 47
Philips Semiconductors
TEA5777
Low-power AM/FM stereo radio for handheld applications
Table 46.
Stereo decoder characteristics
VCCA =VCCD = 3 V; Tamb =25 °C; τdeemp=50 s; not forced to mono; all AC values are given in RMS; see test circuit of
Figure 9; unless otherwise specied.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Input: pin MPXIN
VI
input voltage
0.7
0.75
0.8
V
Ri
input resistance
300
400
500
k
MPX stereo decoder channel
Overall data
Gv
voltage gain
fmod = 1 kHz
1.1
0.82
0.4
dB
αcs
channel separation
Vi3 = 300 mV; fmod = 1 kHz;
Vpilot = 30 mV; R = 1 and L = 0 or
R = 0 and L = 1; VTMUTE =1 V;
fIF = 133.333 kHz; Baud(3dB)
limited to 15 kHz
26
40
-
dB
(S+N)/N
signal plus noise-to-noise ratio
measured at AF output; L = R;
Vi3 = 300 mV; fmod = 1 kHz;
Vpilot = 30 mV; A-weighted
-
68.5
-
dB
THD
total harmonic distortion
measured at AF output; L = R;
VMPXOUT = 300 mV; fmod = 1 kHz;
Vpilot = 30 mV; Baud(3dB) limited to
15 kHz
-
0.05
0.5
%
α
19
19 kHz suppression
reference 300 mV=0dB
23
28
-
dB
α38
38 kHz suppression
reference 300 mV=0dB
31
52
-
dB
Pilot detector
Vpilot
pilot voltage
VTMUTE =1 V
switching to stereo
-
13
16
mV
switching back to mono
3
6
-
mV
mono hysteresis
678mV
Integrated de-emphasis
τdeemp
de-emphasis time constant
bit DEEM = 0
-
50
-
s
bit DEEM = 1
-
75
-
s
Hard mute
αmute
mute attenuation
measured on pins VAFL and
VAFR; audio muted with bit
MUTE = 1; A-weighted
60
70
-
dB
SDS curve (blend function)
Vi
input voltage
SDS region voltage Vi = Vi1;
Vi3 = 300 mV; fmod = 1 kHz;
Vpilot =30mV; R=1andL=0 or
R = 0 and L = 1; bit SDSOFF = 0;
bit DOFF = 0; bit FOMO = 0
start level
-
15
-
V
stop level
-
150
-
V
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