TDA7540B STMicroelectronics, TDA7540B Datasheet - Page 20

• Manufacturer Part Number: TDA7540B
• Manufacturer: STMicroelectronics

Specifications of TDA7540B

• Case: TQFP
• Dc: 06+
• Lead Free Status / Rohs Status: Compliant

DOCUMENT CD00108485
Copyright STMicroelectronics
Electrical specifications
3.2.4
Table 7.
16/75
23.10
23.11
23.12
23.13
Item
23.1
23.2
23.3
23.4
23.5
23.6
23.7
23.8
23.9
24.1
24.2
24.3
24.4
25.1
25.2
26.1
26.2
23
24
25
26
Stereodecoder
Mono/Stereo-switch
19kHz PLL
Deemphasis- and highcut
V
V
V
V
Symbol
(S+N)/N
REVISION 1.0
SVRR
R
PTHMO1
PTHMO0
V
PTHST1
PTHST0
G
G
t
t
V
V
G
THD
f
HC50
HC75
Electrical characteristics
(T
V
circuit, unless otherwise specified).
V
R
puafs
DP
puafs
lock
Stereodecoder
max
step
TH1
TH2
min
a
MPX
in
in
amb
= 25°C, V
= 500mV
MPX input level
Input resistance
Min. Stereodecoder gain
Max. Stereodecoder gain
Stereodecoder gain step
resolution
Supply voltage ripple
rejection
Max. channel separation
Total harmonic distortion
Signal plus Noise to Noise
ratio
Pull up voltage for AFS pin
Pull up resistor for AFS pin
1. threshold for AFS PIN
2. threshold for AFS PIN
Pilot threshold voltage
Pilot threshold voltage
Pilot threshold voltage
Pilot threshold voltage
PLL lock range
Pilot deviation
Deemphasis time constant
Deemphasis time constant
rms
CC1
Parameter
mono, f = 1kHz, deemphasis = 50µs, f
= V
CC2
= V
CC3
COMPANY INTERNAL
STD Gain = 2,5 dB
Vripple = 100mV, f = 1kHz
V
only L/R
A-weighted, 19kHz notch
for Mono->Stereo, PTH = 1
for Mono->Stereo, PTH = 0
for Stereo->Mono, PTH = 1
for Stereo->Mono, PTH = 0
Pilot magnitude
20 mV
Pilot frequency 19kHz
DEEMP = 0, DESFT = 1
V
DEEMP = 1, DESFT = 1
V
= V
MPX
LEVEL
LEVEL
ACTIVE
CCST
Test Conditions
= 500mV
rms
>> V
>> V
= V
= 4%
HCH
HCH
CCVCO
rms
stereo
= V
Xtal
CCMIX1
= 10.25MHz, in application
Unauthorized reproduction and communication strictly prohibited
Min.
18.9
= V
4
CCMIX2
DATE 11-May-2006
Typ.
3.75
1.25
0.02
100
3.3
2.4
0.8
0.5
85
10
14
12
60
50
25
50
75
0
8
= V
Max.
0.93
19.1
0.3
CCIF1
30
TDA7540B
= 8.5V,
mV
mV
mV
mV
V
Unit
kHz
kΩ
kΩ
dB
dB
dB
dB
dB
dB
µs
µs
%
%
rms
V
V
V
rms
rms
rms
rms
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