cxa1853q Sony Electronics, cxa1853q Datasheet

no-image

cxa1853q

Manufacturer Part Number
cxa1853q
Description
Rgb Driver For Lcd
Manufacturer
Sony Electronics
Datasheet
For the availability of this product, please contact the sales office.
Description
It supports a line alternative RGB drive system.
Features
• Built-in RGB signal phase matching sample-and-
• Effective frequency response (18MHz Typ.)
• Built-in gain and breakpoint variable 2-point
• Built-in side black generation circuit for 4:3/16:9
• Built-in VCOM voltage output circuit
Structure
Applications
• Liquid crystal projectors
• Liquid crystal viewfinders
• Compact liquid crystal monitors
The CXA1853Q is an RGB driver for LCD panels.
hold circuit
compensation circuit
aspect conversion
Bipolar silicon monolithic IC
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
RGB Driver for LCD
– 1 –
Absolute Maximum Ratings (Ta = 25°C)
• Supply voltage
• Input pin voltage
• Operating temperature Topr
• Storage temperature
• Allowable power dissipation
Operating Conditions
• Supply voltage
• RGB input signal voltage
Note) Defined as the amplitude from the pedestal
level to white.
CXA1853Q
80 pin QFP (Plastic)
V
V
V
Tstg
P
V
V
V
CC
CC
IN
D
CC
CC
IN
1
2
1
2
–55 to +150
4.75 to 5.25
11.0 to 14.0
–25 to +75
V
1500
0.7
15
CC
6
1
Vp-p
E95825-PP
mW
Note)
°C
°C
V
V
V
V
V

Related parts for cxa1853q

cxa1853q Summary of contents

Page 1

... RGB Driver for LCD For the availability of this product, please contact the sales office. Description The CXA1853Q is an RGB driver for LCD panels. It supports a line alternative RGB drive system. Features • Built-in RGB signal phase matching sample-and- hold circuit • Effective frequency response (18MHz Typ.) • ...

Page 2

... S/H GCA EA S/H S/H S/H GCA EA S/H S/H S/H GCA EA S – 2 – CXA1853Q BLK CENT 40 39 BLK LIM VCOM OUT 38 BUFF SIG CENT CTR 37 VCOM CTR 36 35 PRG GND 34 SID FRP 33 FRP 32 31 PRG CTR SID CTR BUFF ...

Page 3

... GND Typ GND – 3 – CXA1853Q ( 5V 13V Description RGB signal common main brightness control. Preset internally to 3.3V. 40µA R signal main brightness control. Preset internally to 3.3V. B signal main brightness control. Preset internally to 40µA 3 ...

Page 4

... GND 26µ 200 10µA GND – 4 – CXA1853Q Description 13V power supply. R signal output. G signal output. B signal output. 5V power supply. GND. RGB signal common sub brightness control. B signal sub brightness control. Preset internally to 3.3V. R signal sub brightness control ...

Page 5

... GND 10µA 200 33 GND – 5 – CXA1853Q Description SID output detection signal input. Use an average value detecting external capacitor with a small leak current absolute value and tolerance. SID output amplitude control. Preset internally to 3.3V. Level control for the PRG signal inserted into the SID signal ...

Page 6

... CC 2k 200 100k 39 127k 100k 20µA 40µA GND 20µA – 6 – CXA1853Q Description PRG pulse input. This pulse is used to insert the PRG signal into the SID output. Input level: High 4V Low 1V VCOM voltage control. The VCOM voltage variable range is –0.8V to +1.3V with respect to the signal center voltage ...

Page 7

... 1.5k 200 200 45 38k 40µA GND 40µA – 7 – CXA1853Q Description RGB signal output limiter center control. Preset internally to 3.3V. When preset, the limiter center becomes equal to the 40µA RGB output center. RGB signal white peak limiter control. Preset internally to 3.3V. 40µA Measurement selector switch ...

Page 8

... GND PV CC 100µ 200 58 59 100 GND – 8 – CXA1853Q Description Gain control for R signal variable gain amplifier. Preset internally to 3.3V. Gain control for B signal variable gain amplifier. Preset internally to 3.3V. GND. Sample-and -hold circuit current setting. 5V power supply. B GCA circuit clamp detection ...

Page 9

... CC 1k 200 200 71 37k 40µA 40µA GND 40µA – 9 – CXA1853Q Description Measurement input. This pin should be left open. GND. B signal clamp detection. G signal clamp detection. R signal clamp detection. RGB signal common black side voltage gain control. R signal black side voltage gain control ...

Page 10

... GND 20µA – 10 – CXA1853Q Description R signal white side voltage gain control. Preset internally to 3.3V. B signal white side voltage gain control. Preset internally to 3.3V. RGB signal common white side voltage gain change point control. R signal white side voltage gain change point control ...

Page 11

... SW11 b, (XCLP1) = 0V, V11 = 3.4V SW11 b, (XCLP1) = 0V, V11 = 1.4V V23 = 5.0V SW26 b, V26 = 7.0V SW27 b, V27 = 7.0V SW28 b, V28 = 7.0V SW29 b, V29 = 7.0V V31 = 5.0V (FRP (FRP (SID FRP (SID FRP (PRG (PRG V42 = 5V – 11 – CXA1853Q 2 = 13V CC Unit Min. Typ. Max. — — — — — ...

Page 12

... V65 = 3.0V SW65 b, (XCLP1) = 0V, V65 = 1.0V SW66 b, (XCLP1) = 5V, V66 = 2.0V SW66 b, (XCLP1) = 0V, V66 = 3.0V SW66 b, (XCLP1) = 0V, V66 = 1.0V SW67 b, (XCLP1) = 5V, V67 = 2.0V SW67 b, (XCLP1) = 0V, V67 = 3.0V SW67 b, (XCLP1) = 0V, V67 = 1.0V V68 = 5.0V – 12 – CXA1853Q Min. Typ. Max. Unit — –1.7 –0.4 µA –0.1 0 0.1 µA — –1.0 –0.3 µA – ...

Page 13

... B GAM CTR1 pin voltage V79 98 RGB MBRT pin voltage MBRT pin voltage V4 100 B MBRT pin voltage V5 RGB MBRT 101 Z1 input impedance Measurement conditions V71 = 5.0V V74 = 5.0V V77 = 5.0V – 13 – CXA1853Q Min. Typ. Max. Unit — 0.5 1.3 µA — 0.5 1.3 µA — 0.5 1.3 µA 1.3 1.7 2 ...

Page 14

... R GAM CTR2 118 Z75 input impedance B GAM CTR2 Z76 119 input impedance R GAM CTR1 120 Z78 input impedance B GAM CTR1 121 Z79 input impedance Measurement conditions – 14 – CXA1853Q Min. Typ. Max. Unit 45 80 110 110 45 80 110 ...

Page 15

... TP17 with V47 = 1. and the inverted output amplitude as BSTN V . BSTNA G = 20log ( BS1 BSTM (A) GST ( 20log ( BS2 BSTN (A) GST (A) – 15 – CXA1853Q Min. Typ. Max. Unit 4.0 6.0 — GSMA GSNA — –6.0 –4.0 dB ON, 2.5 4.6 — dB — ...

Page 16

... SBN SRNA SRN SGNA SGN V – V SBNA SBN – – SBM SRMA SRM SGMA SGM V – V SBMA SBM – 16 – CXA1853Q Min. Typ. Max. Unit — –0.35 –0.30 V and 0.30 0.35 — –0.12 V — –0.16 0.12 0.16 — — –0.16 –0. ...

Page 17

... TP15, TP16 and TP17 log ( (See "Black Side Gamma Measurement Method".) Set V45 = VI, V23 = 1.6V and V77 = 1.6V. Then obtain the gamma gain of the non-inverted and inverted signals at TP15, TP16 and TP17. – 17 – CXA1853Q Min. Typ. Max. Unit — –1.8 –1.2 V 1.2 1.8 — ...

Page 18

... TP15, TP16 and TP17. (See "White Side Gamma Measurement Method".) Set V45 = V , V23 = 1.6V, SW41 ON, V41 = I 1.6V, V71 = 5.0V and V74 = 5.0V. Then measure the gamma gain of the non-inverted and inverted sides at TP15, TP16 and TP17. – 18 – CXA1853Q Min. Typ. Max. Unit 15 18 — BBT – ...

Page 19

... TP17. (See "Black Side Gamma Measurement Method".) Set V45 = V , V23 = 1.6V, V68 = 5.0V, V77 = I 5.0V, SW1 ON and V1 = 4.0V. Then measure the gamma breakpoints of the non-inverted and inverted sides at TP15, TP16 and TP17. – 19 – CXA1853Q Min. Typ. Max. Unit and –1 — –4.5 – ...

Page 20

... GWRT GWGT GWBT and P , respectively. GWRTA GWGTA GWBTA – P GWT GWRT (A) GWGT ( – P GWGT (A) GWBT ( – P GWBT (A) GWRT (A) – 20 – CXA1853Q Min. Typ. Max. Unit –0.15 0 0.15 V 0.15 0.3 — V — –0.3 –0.15 V 0.15 0.3 — V — –0.3 –0.15 V — –0.35 – ...

Page 21

... V – V WGLN (A) WGLT ( – V WBLN (A) WBLT ( – WRLM (A) WRLT ( – V WGLM (A) WGLT (A) V – V WBLM (A) WBLT (A) – 21 – CXA1853Q Unit Min. Typ. Max. — –0.3 –0.15 V and the 0.15 0.3 — V — –0.3 –0.15 V and the 0.15 0.3 — WGLT 1 ...

Page 22

... Then label the DC voltages at TP15, TP16 and TP17 and V , respectively. CRT CGT CBT CRGB CRT CGT CBT Set V31 = 1.6V, SW30 ON and V30 = 1.6V. Then measure the DC voltage at TP13. – 22 – CXA1853Q Min. Typ. Max. Unit (b), 4.2 4.8 5.4 V and , BRLTA 4.2 4.8 5.4 V and , V BGLN 0.7 1.2 — ...

Page 23

... Then measure the output amplitude at TP13. Set V31 = 1.6V, SW30 ON, V30 = 1.6V and V = 13V. CC2 Then measure the output amplitude at TP13. Set V31 = 5.0V. Then measure the amplitude of the PRG section using the output waveform at TP13. V PRG SG5 – 23 – CXA1853Q Min. Typ. Max. Unit –150 0 150 — 4.7 5 ...

Page 24

... Set V45 = V and input SG7 to (SH1), (SH2) I and (SH3). Then measure the droop rate at TP15, TP16 and TP17. Next, input SG7 to (SH4). Then measure the droop rate of TP15, TP16 and TP17. – 24 – CXA1853Q Min. Typ. Max. Unit — 0 0.4 Vp-p — 18 — ...

Page 25

... GN (a – – Reference level y10 y9 y8 RGB output waveform (SG9) – 25 – CXA1853Q to a using SG8 as the input 1 10 and y . Also – respectively using SG9 as the 1 10 and y . Also – respectively other words: h – ...

Page 26

... GN (a – – Reference level y9 y10 y7 y8 RGB output waveform (SG9) – 26 – CXA1853Q to a using SG9 as the input 1 10 and y . Also – respectively using SG8 as the 1 10 and y . Also – respectively other words: h – ...

Page 27

... SG1 5µs 5V SG2 0V 5V SG3 0V 5V SG4 0V 5V SG5 0V 6µs SG6 5V SG7 0V Amplitude of the 10th step Black Amplitude of the 5th step Amplitude of the 1st step 64µs 2µs 0.4µs 1.2µs 1µs tr, tf < 5ns 10µs – 27 – CXA1853Q White 0.714V 0.286V 0.714V ...

Page 28

... SG8 35mV 35mV 35mV 35mV 35mV 35mV SG9 350mV 35mV 35mV 35mV 35mV 35mV 35mV 35mV 35mV 35mV 35mV 35mV 35mV – 28 – CXA1853Q ...

Page 29

... V45 V54 (b) (a) TP49 33k V46 V47 0.1µ (a) SW51 (b) V51 0.1µ (a) SW53 (b) V53 – 29 – CXA1853Q SW4 SW1 SW79 V79 78 SW78 V78 77 V77 76 SW76 V76 75 SW75 V75 74 ...

Page 30

... MBRT (Pin 1). Bright can be controlled without changing the bias is changed with the breakpoint for output kept constant. RGB signal output Low Reference signal 1.2µ 0.4µ 0.4µ characteristics to the panel because the input 50 IRE Bright pin voltage preset – 30 – CXA1853Q High ...

Page 31

... S/H 57, 58 S/H pulse Reference level Input S/H Gain control amplifier S/H Clamp pulse Error amplifier Clamp capacitance – 31 – CXA1853Q Output Input Breakpoint variation 45 To the inversion circuit Clamp voltage ...

Page 32

... RGB OUT SID output The CXA1853Q outputs a side black signal for 4:3/16:9 aspect conversion. The black level is adjusted by the SID CTR pin. In addition, the PRG level can be set in part of the side black signal by inputting the PRG pulse. The PRG level is adjusted by the PRG CTR pin. The relationship between each input and output is as shown in the figure below ...

Page 33

... Pins 12, 22, 34, 48, 55 and 64 (GND) should be set to the minimum identical potential applied to the IC, and should not be left open. In addition, the potential at Pins 8, 18, 50 and 62 should be the same. or less) and the external capacitor must have a small leak 100 to 220 SID OUT 390k SID CLP 1µF – 33 – CXA1853Q Load capacitance 30pF or less ...

Page 34

... ANALOG RGB IN 5V 13V 0.01µ 100µ 0.01µ 100µ – 34 – CXA1853Q 5V 0.01µ 100µ BLK CENT 40 BLK LIM VR 39 VCOM OUT 38 SIG CENT CTR 37 VR VCOM CTR VR 36 PRG 35 GND ...

Page 35

... R MBRT, B MBRT adjustment range 0.2 0.1 0 –0.1 –0 SBRT, B SBRT adjustment range –1 – – 35 – CXA1853Q GAIN (V46) [V] B GAIN (V47) [ MBRT (V4) [V] B MBRT (V5) [ SBRT (V25) [V] B SBRT (V24) [V] ...

Page 36

... R, B gamma white side gain adjustment range 5 0 – GAM GAIN2 (V72) [V] B GAM GAIN2 (V73) [ gamma black side breakpoint sub adjustment range 0.4 0.2 0 –0.2 –0 GAM CTR1 (V78) [V] B GAM CTR1 (V79) [V] – 36 – CXA1853Q ...

Page 37

... R GAM CTR2 (V75) [V] B GAM CTR2 (V76) [V] BLK LIM adjustment range BLK LIM (V39) [V] Signal center adjustment range SIG CENT CTR (V37) [V] – 37 – CXA1853Q ...

Page 38

... VCOM control range –1 – VCOM CTR (V36) [V] SID amplitude control range SID CTR (V30) [V] PRG level control range PRG CTR (V31) [V] – 38 – CXA1853Q ...

Page 39

... DETAIL A SONY CODE QFP80P-L111 EIAJ CODE QFP080-P-1414 JEDEC CODE 80PIN QFP (PLASTIC) 1.4 ± 0 0.3 ± 0.05 0.13 M PACKAGE STRUCTURE PACKAGE MATERIAL LEAD TREATMENT LEAD MATERIAL PACKAGE WEIGHT – 39 – CXA1853Q 0.1 0.15 ± 0.05 EPOXY RESIN SOLDER PLATING COPPER 0.6g ...

Related keywords