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STV0042

SATELLITE SOUND AND VIDEO PROCESSORS

STMicroelectronics 

STV0042A

ABSOLUTE MAXIMUM RATINGS

Symbol

VCC

VDD

Ptot

Toper

Tstg

Supply Voltage

Parameter

Total Power Dissipation

Operating Ambient Temperature

Storage Temperature

Value

15

7.0

900

0, + 70

-55, + 150

Unit

V

V

mW

oC

oC

THERMAL DATA

Symbol

Rth(j-a)

Parameter

Thermal Resistance Junction-ambient

Value

60

Unit

oC/W

DC AND AC ELECTRICAL CHARACTERISTICS

(VCC = 12V, VDD = 5V, Tamb = 25oC unless otherwise specified)

Symbol

Parameter

VCC Sypply Voltage

VDD

IQCC Supply Current

IQDD

IQLPCC Supply Current at Low Power Mode

IQLPDD

AUDIO DEMODULATOR

Test Conditions

All audio and all video outputs

activated

All audio and all video outputs

are in high impedance mode

FMIN

DETH

FM Subcarrier Input Level

(Pin FMIN for AGC action)

Detector 1 and 2 (AMPLOCK Pins)

(Threshold for activating Level Detector 2)

VCO locked on carrier at 6MHz

560kΩ load on AMPLOCK Pins

180kΩ load on DET Pins

8mVPP ≤ FMIN ≤ 500mVPP

Carrier without modulation

VCOMI

VCOMA

AP50

VCO Mini Frequency

VCO Maxi Frequency

1kHz Audio Level at PLL output

(DET Pins)

APA50 1kHz Audio Level at PLL output

(DET Pins)

VCC : 11.4

Tamb : 0 to

to 12.6V,

70oC

0.5VPP 50kHz dev. FM input,

Coarse deviation set to 50kHz

(Reg. 05 = 36HEX)

0.5VPP 50kHz dev. FM input,

Coarse and fine settings used

FMBW FM Demodulator Bandwidth

DPCO Digital Phase Comparator Output Current

(CPUMP Pins)

Gain at 12kHz versus 1kHz

180kΩ, 82kΩ 22pF on DET Pins

Average sink and source

current to external capacitor

AUTOMATIC NOISE REDUCTION SYSTEM

LRS

LDOR

NDFT

NDLL

LLCF

HLCF

Output Level (Pin SUMOUT)

Level Detector Output Resistance

(Pins PK OUT)

Level Detector Fall Time Constant

(Pins PK OUT)

Bias Level (Pins PK OUT)

Noise Reduction Cut-off Frequency at

Low Level Audio

Noise Reduction Cut-off Frequency at

High Level Audio

1VPP on left and right channel

External 22nF to GND and

1.2MΩ to VREF

No audio in

100mVPP on DET Pins, External

capacitor 330pF (FC Pins)

1VPP on DET Pins, External

capacitor 330pF (FC Pins)

Min.

11.4

4.75

5

2.90

10

0.6

0.92

0

0.9

4.0

Typ.

12

5.0

55

8

27

6

3.10

1

1

0.3

60

1

5.4

26.4

2.40

0.85

7

Max.

12.6

5.25

70

15

35

9

Unit

V

V

mA

mA

mA

mA

500 mVPP

3.30 V

5

1.35

MHz

MHz

VPP

1.08 VPP

1 dB

µA

1.1 VPP

6.8 kΩ

ms

V

kHz

kHz

9/24

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