TA1383AFG Datasheet, PDF (27/47 Pages) Toshiba Semiconductor – NTSC Chroma Decoder, Multi-Point Scan Sync Processor, H/V Frequency Counter IC for Color TV

Note No.
Characteristic
Y2 I/O gain 3
(YCbCr → YPbPr)
Y3 I/O gain 5
(RGB → YCbCr)
TA1383AFG
SW Mode
SW28 SW29 SW30
Test Method
C
C
A (1) Set INPUT SW (SA 00H) to D-SYNC1/Y3/CbCr (PbPr) (C0H).
↓
↓
(2) Set MATRIX SW (SA 03H) to MODE-3 (C0H).
A
A
↓
(3) Input sine wave A (f = 100 kHz) to IN30 and set #30 amplitude to 0.2 V_p-p.
(4) Measure #24 amplitude VMYP [V] and determine GMYP using the following equation.
C
GMYP = 20 × log (VMYP/0.2) [dB]
(5) Set SW29 to A, input sine wave B (f = 100 kHz) to IN29, and set #29 amplitude to 0.2 V_p-p.
(6) Input sync signal to IN30.
(7) Measure #24, #23, #22 amplitudes VMBP1, VMBP2, and VMBP3 [V], and determine GMBP1, GMBP2, and GMBP3
using the following equation.
GMBP* = 20 × log (VMBP*/0.2) [dB]
(8) Set SW28 to A and SW29 to C, input sine wave B (f = 100 kHz) to IN28, and set #28 amplitude to 0.2 V_p-p.
(9) Input sync signal to IN30.
(10) Measure #24, #23, #22 amplitudes VMRP1, VMRP2, and VMRP3 [V], and determine GMRP1, GMRP2, and GMRP3
using the following equation.
GMRP* = 20 × log (VMRP*/0.2) [dB]
C
C
A (1) Set INPUT SW (SA 00H) to DSYNC1/RGB (D0H).
↓
↓
(2) Set MATRIX SW (SA 03H) to MODE-1 (80H).
A
A
↓
C
(3) Input sine wave A (f = 100 kHz) to IN30 and set #30 amplitude to 0.2 V_p-p.
(4) Measure #24, #23, #22 amplitudes VMGA1, VMGA2, and VMGA3 [V], and determine GMGA1, GMGA2, and GMGA3
using the following equation.
GMGA* = 20 × log (VMGA*/0.2) [dB]
(5) Set SW29 to A, input sine wave B (f = 100 kHz) to IN29, and set #29 amplitude to 0.2 V_p-p.
(6) Input sync signal to IN30.
(7) Measure #24, #23, #22 amplitudes VMBA1, VMBA2, and VMBA3 [V], and determine GMBA1, GMBA2, and GMBA3
using the following equation.
GMBA* = 20 × log (VMBA*/0.2) [dB]
(8) Set SW28 to A and SW29 to C, input sine wave B (f = 100 kHz) to IN28, and set #28 amplitude to 0.2 V_p-p.
(9) Input sync signal to IN30.
(10) Measure #24, #23, #22 amplitudes VMRA1, VMRA2, and VMRA3 [V], and determine GMRA1, GMRA2, and GMRA3
using the following equation.
GMRA* = 20 × log (VMRA*/0.2) [dB]
27
2005-09-05