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PDF CXB1457R Data sheet ( Hoja de datos )
| Número de pieza | CXB1457R | |
| Descripción | EGA/VGA/WVGA/SVGA 24-bit Transmitter | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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CXB1457R
EGA/VGA/WVGA/SVGA 24-bit Transmitter
Description
The CXB1457R is a transmitter chip for data
transmission based on GVIF (Gigabit Video Interface)
technology.
This IC supports 24-bit color data transmission with
EGA/VGA/WVGA/SVGA resolution.
Features
• 1 chip transmitter for serial transmission of 24-bit
color EGA/VGA/WVGA/SVGA picture
• On-chip PLL synthesizer
• On-chip differential cable driver
• On-chip FIFO circuit
• CMOS logic interface
• +3.3V single power supply
• Low power consumption
• Lead-free 48-pin plastic LQFP package
(7mm × 7mm)
Application
GVIF (Gigabit Video Interface)
Structure
Bi-CMOS IC
48 pin LQFP (Plastic)
Absolute Maximum Ratings
• Supply voltage VDD, VCCA
• Storage temperature
Tstg
• Allowable power dissipation
PD
–0.3 to +4.0
–65 to +150
333
V
°C
mW
Recommended Operating Conditions
• Supply voltage VDD, VCCA 3.135 to 3.465
• Operating temperature
Topr
–40 to +85
V
°C
Block Diagram & Pin Configuration
36 35 34 33 32 31 30 29 28 27 26 25
GND 37
REFREQ 38
CNTL 39
DE 40
PLL
Cable
Driver
SFTCLK 41
HSYNC 42
VSYNC 43
P/S
Converter
B7 44
B6 45
B5 46
Encoder
B4 47
VDD 48
FIFO
24 VDD
23 R0
22 R1
21 R2
20 R3
19 R4
18 R5
17 R6
16 R7
15 G0
14 G1
13 GND
1 2 3 4 5 6 7 8 9 10 11 12
Fig. 1. Block Diagram & Pin Configuration
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.
–1–
E04Y33A52
1 page  
CXB1457R
Electrical characteristics
Table 4. Absolute Maximum Ratings
Item Symbol Min. Typ. Max. Unit
Supply voltage
VCC
–0.3
—
+4.0
V
CMOS DC input voltage
VI_C
–0.5
—
+4.0
V
CMOS High level output current IOH_C
–10
—
0 mA
CMOS Low level output current IOL_C
0
— +10 mA
Serial data output pin voltage Vsdout VCC – 1.2 — VCC + 0.5 V
Storage temperature
Tstg –65 — +150 °C
Table 5. Recommended Operating Conditions
Item
Supply voltage
Ambient temperature
Symbol Min. Typ. Max. Unit
VCC
3.135
3.3
3.465
V
Ta –40 — +85 °C
Remarks
Remarks
Table 6. DC Characteristics (Under the recommended conditions. See Table 5.)
Item
Symbol Min.
Typ. Max. Unit
Remarks
SFTCLK/Pixel/Sync/Cntl/DE
High level input voltage
VIH_C1 VDD – 1.0 —
VDD
V
SFTCLK/Pixel/Sync/Cntl/DE
Low level input voltage
VIL_C1
0
— 0.8 V
SFTCLK/Pixel/Sync/Cntl/DE
High level input current
IIH_C1
—
— 1.0 µA VIN = VDD
SFTCLK/Pixel/Sync/Cntl/DE
Low level input current
IIL_C1
–1.0
—
— µA VIN = 0
CE and CKPOL High level input voltage VIH_C2 VDD – 0.5 —
VDD
V
CE and CKPOL Low level input voltage VIL_C2
0
— 0.5 V
CE and CKPOL High level input current IIH_C2
—
— 1.0 µA VIN = VDD
CE and CKPOL Low level input current IIL_C2
–1.0
—
— µA VIN = 0
CMOS High level output voltage VOH_C
2.4
—
— V IOH = –2mA
CMOS Low level output voltage VOL_C
—
— 0.4 V IOL = 2mA
SDATA High level output current IOH_SD –0.1 — +0.5 mA
REXT = 4.7kΩ
SDATA Low level output current IOL_SD 14.0 — 18.0 mA
SDATA High level input voltage
SDATA Low level input voltage
VIH_SD VCC – 0.50 —
— V Common mode
VIL_SD
—
— VCC – 0.74 V voltage
Supply current
Worst case
16 gray scale
ICC
— 70 95 mA CL = 10pF, f = 40MHz
— 60 — mA CL = 10pF, f = 8MHz
— 60 85 mA CL = 10pF, f = 40MHz
— 55 — mA CL = 10pF, f = 8MHz
–5–
5 Page 
CXB1457R
Application Circuit
Differential cable
(1) Chip resistor (1%)
(2) Chip capacitor
(3) Formed by the printed circuit pattern
(L = 0.5 to 1.0mm/W = 0.5 to 1.0mm)
(4) LPF chip capacitor (Temperature compensation type)
VCC
VCC
0.1 to 0.4n (3)
33µ 0.1 to 0.4n (3)
16V 0.1µ
(2)
VCC
Connector
51
(1)
4.7k
(1)
51
(1)
330 SW2
High: Rising edge trigger
Low: Falling edge trigger
330 (1)
680p 0.01µ
(4) (4)
330 (1)
VCC
330 SW1 High: Transmission data
Low: Standby
0.1µ
0.1µ
(2) 36 35 34 33 32 31 30 29 28 27 26 25 (2)
37 GND
38 REFREQ
330
39 CNTL
40 DE
41 SFTCLK
42 HSYNC
43 VSYNC
44 B7
45 B6
46 B5
47 B4
VCC
48 VCC
CXB1457R
VCC 24
R0 23
R1 22
R2 21
R3 20
R4 19
R5 18
R6 17
R7 16
G0 15
G1 14
GND 13
VCC
1 2 3 4 5 6 7 8 9 10 11 12
0.1µ (2)
0.1µ (2)
VCC
76543210
MSB
LSB
BLUE DATA
76543210
MSB
LSB
GREEN DATA
76543210
MSB
LSB
RED DATA
Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for
any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.
Fig. 11. Example of Application Circuit
– 11 –
11 Page | ||
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| PDF Descargar | [ Datasheet CXB1457R.PDF ] | |
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