MSP4458 datasheet(66/85 Pages) MICRONAS

66 / 85 page

MSP 44x8G

PRELIMINARY DATA SHEET

Micronas

4.6.3.10. Sound Standard Dependent Characteristics

Symbol

Parameter

Pin Name

Min.

Typ.

Max.

Unit

Test Conditions

NICAM Characteristics (MSP Standard Code = 8)

dVNICAMOUT

Tolerance of Output Voltage

of NICAM Baseband Signal

DACp_s

SCn_OUT_s1)

−1.5

+1.5

2.12 kHz, Modulator input

level = 0 dBref

S/NNICAM

S/N of NICAM Baseband Signal

NICAM:

−6 dB, 1 kHz,

RMS unweighted

0 to 15 kHz, Vol = 9 dB

NIC_Presc = 7Fh

Output level 1 VRMS at

DACp_s

THDNICAM

Total Harmonic Distortion

+ Noise

of NICAM Baseband Signal

0.1

2.12 kHz, Modulator input

level = 0 dBref

BERNICAM

NICAM: Bit Error Rate

10−7

+NICAM,

norm conditions

fRNICAM

NICAM Frequency Response,

20...15000 Hz

−1.0

+1.0

Modulator input

level =

−12 dB dBref; RMS

XTALKNICAM

NICAM Crosstalk Attenuation

(Dual)

SEPNICAM

NICAM Channel Separation

(Stereo)

FM Characteristics (MSP Standard Code = 3)

dVFMOUT

Tolerance of Output Voltage

of FM Demodulated Signal

DACp_s,

SCn_OUT_s1)

−1.5

+1.5

1 FM-carrier, 50

µs, 1 kHz,

40 kHz deviation; RMS

S/NFM

S/N of FM Demodulated Signal

1 FM-carrier 5.5 MHz,

µs, 1 kHz, 40 kHz devi-

ation; RMS, unweighted

0 to 15 kHz (for S/N);

full input range, FM-Pres-

cale = 46 h, Vol = 0 dB

→ Output Level 1 V

RMS at

DACp_s

THDFM

Total Harmonic Distortion

+ Noise

of FM Demodulated Signal

0.1

fRFM

FM Frequency Responses,

20...15000 Hz

−1.0

+1.0

1 FM-carrier 5.5 MHz,

µs, Modulator input

level =

−14.6 dBref; RMS

XTALKFM

FM Crosstalk Attenuation (Dual)

2 FM-carriers

5.5/5.74 MHz, 50

µs,

1 kHz, 40 kHz deviation;

Bandpass 1 kHz

SEPFM

FM Channel Separation (Stereo)

2 FM-carriers

5.5/5.74 MHz, 50

µs,

1 kHz, 40 kHz deviation;

RMS

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.

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