STV0056AF 查看數據表（PDF） - STMicroelectronics

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STV0056AF

SATELLITE SOUND AND VIDEO PROCESSOR

STMicroelectronics 

STV0056AF

ABSOLUTE MAXIMUM RATINGS

Symbol

VCC

VDD

Ptot

Toper

Tstg

Supply Voltage

Parameter

Total Power Dissipation

Operating Ambient Temperature

Storage Temperature

THERMAL DATA

Symbol

Rth(j-a)

Parameter

Thermal Resistance Junction-ambient

Max.

Value

Unit

15

V

7.0

V

900

mW

0, + 70

oC

-55, + 150

oC

Value

55

Unit

oC/W

DC AND AC ELECTRICAL CHARACTERISTICS

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

Symbol

Parameter

VCC

VDD

IQCC

IQDD

IQLPCC

IQLPDD

Sypply Voltage

Supply Current

Supply Current at Low Power Mode

AUDIO DEMODULATOR

Test Conditions

All audio and all video outputs

activated

All audio and all video outputs

are in high impedance mode

FMIN FM Subcarrier Input Level

(Pin FMIN for AGC action)

DETH

VCOMI

VCOMA

AP50

Detector 1 and 2 (AMPLOCK Pins)

(Threshold for activating Level Detector 2)

VCO Mini Frequency

VCO Maxi Frequency

1kHz Audio Level at PLL output

(DET Pins)

APA50 1kHz Audio Level at PLL output

(DET Pins)

FMBW FM Demodulator Bandwidth

DPCO Digital Phase Comparator Output

Current (CPUMP Pins)

VCO locked on carrier at 6MHz

560kΩ load on AMPLOCK Pins

180kΩ load on DET Pins

8mVPP ≤ FMIN ≤ 500mVPP

Carrier without modulation

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

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 (Pins LEVEL)

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

11/27

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