STV6412B 查看數據表（PDF） - STMicroelectronics

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STV6412B

Filtered Video Buffers for STB and DVD Devices

STMicroelectronics 

STV6412B

Electrical characteristics

Table 5.

Symbol

Audio section characteristics (continued)

Parameter

Test conditions

Min Typ Max Unit

CS

Channel separation, from audio

inputs

Between L & R of TV outputs

VIN = 0.5 VRMS at 1 kHz, on 1 input,

RLOAD = 10 kΩ, Gain = 0 dB

80

70

90

74

dB

Ci

Channel isolation from video

inputs

VIN = 1 Vpp at 15 kHz, on one point

85

dB

VOUT

VOFF

ROUT

Output DC level

DC offset change

Output resistance

PHD Phase difference

VCCA = 9 V

Switching between inputs

f = 1 kHz, 1 VRMS input on each

input channel

VCCA/2

V

1

±15 mV

60 120 Ω

3 ° deg.

ASN S/N ratio

f = 1 kHz, 1 VRMS input (Gain =

0 dB) weighted CCIR 468-4 quasi

75

85

dB

peak

eNI

Equivalent RMS input voltage

noise

BW = 20 Hz to 20 kHz flat, Gain =

0 dB

5

µV

G0 0 dB gain

0.5 VRMS, RLOAD = 10 kΩ, Gain =

0 dB

-0.5

+0.5 dB

GSTEP Gain step

-62 dB to +6 dB (see Figure 5)

2

dB

GMATCH1

Gain matching between different

inputs of one output

VIN = 0.5 VRMS, 1 kHz, Gain = 0 dB

-0.5

0.5 dB

GMATCH2

Gain matching between left/right

outputs of one input channel

VIN = 0.5 VRMS, 1 kHz, Gain = 0 dB

-0.5

0.5 dB

THD0

THD6

THD9

Total harmonic distortion

ENC Input at 0 dB

ENC Input at 6 dB

ENC Input at 9 dB

VOUT = 0.5 VRMS, 1 kHz, LPF @

80 kHz

0.01 0.1 %

0.01 0.1 %

0.01 0.1 %

VCL

RL

Mute

Output clipping level

Output load resistance

Mute suppression

THD = 0.2%, 1 kHz

VIN = 1 VRMS, THD = 0.3%,

Gain = 0 dB

VIN = 0.5 VRMS, on one point

2.1 2.3

2 2.25

-90

VRMS

kΩ

dB

11/32

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