S5L1454A Просмотр технического описания (PDF) - Samsung

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Компоненты Описание

производитель

S5L1454A

DVD PLAYER DIGITAL SERVO & DSP IC

Samsung 

S5L1454A

DVD PLAYER DIGITAL SERVO & DSP IC

COMMAND

TBAcmd (B3xxxx)

Related Register

REGISTER

nTbal

TBwt

TBok

TBk

Tengh

fmin

fmax

ADDR.

0061

005A

10B1

0031

00BE

00DA

00EA

FUNCTION

Number of TZC cycles to calculate the 1st balance error

Wait time to the next measurement after changing Tbal

Tbal ok level (allowable error)

TRK balance control sensitivity coefficient

TZC size minimum limit

TZC detection minimum frequency

TZC maximum frequency

COMMAND

AAFFFC

AAFFF5

ADFFF1

AEFFFD

BE00BE

BE00DA

BE00EA

Operation Description

Out of the TE(tzc) signals, the TEmin and TEmax are measured in the periods that pass through Vref and satisfy

all the conditions of fmin and fmax. The median of these two values is calculated, and if these periods are

continued for the number of nTbals, the difference between the average value of the medians and the adjustment

reference level (= Tofst) is said to be the balance error. If the error is smaller than TBok, the adjustment is ended,

but if it is larger, the product of Tbal's previous value and TBk is output.

When you renew the Tbal output value, the gain or delay within the RF's TE AMP varies, making the TE signal's

balance error change as well. A wait time (TBwt) longer than the settling time according to such analog

characteristics is set. When the system is stabilized after the wait time, the operations for balance error detection

are repeated.

Tofst

Vref

TEmax

¨ç ¨è

TBwt

TEmin

fmin

fmax

→ nTbal can be set maximum to 0080h with 2N.

→ fmin and fmax frequencies → set data conversion method

fs 151.2 kHz

fmin = 615 Hz = 246 (00F6h)

nTbal=2

¨ç ¨è

Tengh

28

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