CXA1854AR 데이터 시트보기 (PDF) - Sony Semiconductor

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CXA1854AR

Decoder/Driver/Timing Generator for Color LCD Panels

Sony Semiconductor 

CXA1854AR

Electrical Characteristics – AC Characteristics (2)

Item

Symbol

Chroma signal block

Conditions

Min. Typ. Max. Unit

ACC1N Input SIG6 (VL = 0mV) to (A) and SIG3

NTSC

–3 0 +3 dB

ACC amplitude

(0dB/+6dB/–20dB, 3.58MHz burst/chroma

characteristics 1

ACC1P

phase = 180°, or 4.43MHz burst/chroma

phase = ±135°) to (B). Measure the output

PAL

SW7 = C

–3

0 +3 dB

amplitude at TP51, assuming the output

ACC amplitude

ACC2N

corresponding to 0dB, +6dB and –20dB as

V0, V1 and V2, respectively.

NTSC

–3 0 +3 dB

characteristics 2

ACC2P

ACC1 = 20log (V1/V0)

ACC2 = 20log (V2/V0)

PAL

–3 0 +3 dB

SW7 = C

APC pull-in range

FAPCNU

FAPCND

FAPCPU

FAPCPD

Input SIG6 (VL = 0mV) to (A) and SIG3

NTSC

upper limit 350

(0dB, 3.58MHz burst/chroma phase = 180°, CL = 20pF

or 4.43MHz burst/chroma phase = ±135°) to

(B), and measure the output amplitude at

TP43. Changing the SIG3 burst frequency,

NTSC

lower limit

CL = 20pF

mesure the frequency fl which TP43 output

changes (the killer mode is canceled).

(The crystal parallel floating capacitance is

2pF or less)

PAL

upper limit

SW7 = C

350

CL = 16pF

NTSC: FAPCN = fl – 3579545Hz

PAL: FAPCP = fl – 4433619Hz

PAL

lower limit

SW7 = C

CL = 16pF

Hz

–350 Hz

Hz

–350 Hz

Color adjustment

GCOLMX

characteristics MAX

Color adjustment GCOLMN

characteristics MIN

Input SIG6 (VL = 0mV) to (A) and SIG3 (0dB, 3.58MHz

burst/chroma phase = 180°) to (B). Assume the chroma

amplitude when V53 = 3.2V, 5V and 2.1V as V0, V1

and V2, respectively, and calculate GCOLMX = 20log

(V1/V0) and GCOLMN = 20log (V2/V0).

3 5.5

dB

–20 –15 dB

HUE adjustment

range MAX

HUE adjustment

range MIN

TNTMX

TNTMN

Input SIG6 (VL = 0mV) to (A) and SIG3 (0 dB) to (B).

Assume the phase at which the output amplitude at TP43 30

reaches a minimum when V53 = 3.2V, 5V and 1.6V as

θ0, θ1 and θ2, respectively, and calculate TNTMX

= θ1 – θ0 and TNTMN = θ2 – θ0.

deg

–30 deg

Killer operation

input level

ACKN

ACKP

Input SIG6 (VL = 0mV) to (A) and SIG3

(level variable, 3.58MHz burst/chroma

phase = 180°, or 4.43MHz burst/chroma

phase = ±135°) to (B), and measure the

output amplitude at TP43. Gradually reduce

the SIG3 amplitude and measure the level

at which the killer operation is activated.

NTSC

PAL

SW7 = C

–36 –30 dB

–33 –27 dB

– 15 –

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