TDA7546 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
TDA7546 Datasheet PDF : 68 Pages
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Electrical specification
TDA7546
Table 5.
Tuner (continued)
(Tamb = -40 to +85°C, VCC1 = VCC2 = VCC3 = VCCVCO = VCCMIX1 = VCCIF1=8.5V,
fRF = 98.1MHz, dev. = 40KHz, fMOD = 1KHz, fIF1 = 10.7MHz, fIF2 = 450KHz,
fXtal = 10.25MHz, in application circuit, unless otherwise specified.)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
ISS Filter Time Constant
Charge current low mid
TISS, ISSCTL = 1
Charge current high mid
TISS, ISSCTL = 1
Charge current low narrow TISS, ISSCTL = 1
I15
Charge current high narrow TISS, ISSCTL = 1
Discharge current low
TISS, ISSCTL = 0
Discharge current high
Low voltage
V15
High voltage
TISS, ISSCTL = 0
ISSCTL = 0
ISSCTL = 1
1. Guaranteed by design
-74
μA
-80
-60 -40
μA
-124
μA
-140 -110 -80
μA
0.5
1
2
μA
10
15
20
μA
0.1
0.2
V
4.6
4.9
V
3.3.1 Additional parameters
Table 6. Additional parameters
Symbol
Parameter
Output of Tuning Voltages (TV1,TV2)
Test Conditions
VOUT Output voltage
TVO
ROUT Output impedance
Xtal Reference Oscillator
fLO
CStep
Cmax
Δf/f
Reference frequency
Min. cap step
Max. cap
Deviation versus VCC2
Δf/f Deviation versus temp
I2C-Bus interface
CLoad = 15pF
XTAL
XTAL
ΔVCC2 = 1V (1)
-40°C < T < +85°C (1)
fSCL
Clock frequency
VIL
Input low voltage
VIH
Input high voltage
IIN
Input current
VO
Output acknowledge voltage IO = 1.6mA
Loop Filter Input/Output
Min. Typ. Max. Unit
0.5
VCC3-
0.5
V
18 21.5 25
kΩ
10.25
0.75
23.25
1.5
0.2
MHz
pF
pF
ppm/V
ppm/K
400 KHz
1
V
2.5
V
-5
5
μA
0.4
V
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