MSP4458 datasheet(67/85 Pages) MICRONAS

67 / 85 page

PRELIMINARY DATA SHEET

MSP 44x8G

Micronas

AM Characteristics (MSP Standard Code = 9)

S/NAM(1)

S/N of AM Demodulated Signal

measurement condition: RMS/Flat

DACp_s,

SCn_OUT_s1)

SIF level: 0.1

−0.8 V

AM-carrier 54% at 6.5 MHz

Vol = 0 dB, FM/AM

prescaler set for

output = 0.5 VRMS at

Main out;

Standard Code = 09hex

no video/chrominance

components

S/NAM(2)

S/N of AM Demodulated Signal

measurement condition: QP/CCIR

THDAM

Total Harmonic Distortion

+ Noise

of AM Demodulated Signal

0.6

fRAM

AM Frequency Response

50 Hz... 12 kHz

−2.5

+1.0

BTSC Characteristics (MSP Standard Code = 20hex, 21hex)

S/NBTSC

S/N of BTSC Stereo Signal

S/N of BTSC-SAP Signal

DACp_s,

SCn_OUT_s1)

1 kHz L or R or SAP, 100%

modulation, 75

µs deem-

phasis, RMS unweighted 0

to 15 kHz

THDBTSC

THD

+N of BTSC Stereo Signal

THD

+N of BTSC SAP Signal

0.1

0.5

1 kHz L or R or SAP, 100%

µs EIM2), DBX NR,

RMS unweighted

0 to 15 kHz

fRBTSC

Frequency Response of BTSC

Stereo, 50 Hz...12 kHz

Frequency Response of BTSC

SAP, 50 Hz...9 kHz

−0.5

−1.0

0.5

0.6

L or R or SAP,

1%...66% EIM2), DBX NR

XTALKBTSC

Stereo

→ SAP

SAP

→ Stereo

1 kHz L or R or SAP, 100%

modulation, 75

µs deem-

phasis, Bandpass 1 kHz

SepBTSC

Stereo Separation

50 Hz...10 kHz

50 Hz...12 kHz

L or R 1%...66% EIM2),

DBX NR

FMThrPilot

Pilot deviation threshold

Stereo off

→ on

Stereo on

→ off

ANA_IN1+,

ANA_IN2+

3.2

1.2

3.5

1.5

kHz

4.5 MHz carrier modulated

with fh=15.743 kHz

SIF level=100mVpp

indication: STATUS Bit[6]

fPilot

Pilot Frequency Range

ANA_IN1+

ANA_IN2+

15.563

15.843

kHz

standard BTSC stereo sig-

nal, sound carrier only

Symbol

Parameter

Pin Name

Min.

Typ.

Max.

Unit

Test Conditions

1) “n” means “1”, “2”, “3”, or “4”;

“s” means “L” or “R”;

“p” means “M” or “A”

2) EIM refers to 75-

µs Equivalent Input Modulation. It is defined as the audio-signal level which results in a stated percentage modulation,

when the DBX encoding process is replaced by a 75-

µs preemphasis network.

MSP4458 Datasheet(PDF) 67 Page - Micronas

MSP4458 Datasheet(HTML) 67 Page - Micronas

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