CXA2149 Sony Corporation, CXA2149 Datasheet

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CXA2149

Manufacturer Part Number
CXA2149
Description
US Audio Multiplexing Decoder
Manufacturer
Sony Corporation
Datasheet

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Part Number
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Part Number:
CXA2149AQ
Manufacturer:
SONY
Quantity:
10 000
For the availability of this product, please contact the sales office.
Description
featuring I
input pins that are compatible with the SCART
protocols. It offers other features such as an
electronic mute function with switching noise
reduction (zero cross detection), electronic volume
control, automatic SYNC pulse detection, and group
delay control.
Features
• 3 CVBS inputs.
• 2 CVBS outputs.
• Group delay control on TV and CVIN1.
• SYNC ID on TV and CVIN1.
• 3 Y/C inputs.
• 2 Y/C outputs.
• 6 L/R/2 inputs.
• 3 L/R/2 outputs.
• Mode inputs compatible with the SCART protocol.
• 3 Y/C mixer circuits.
• Audio muting via software control.
• External muting input.
• Audio switching noise elimination circuit.
• Volume adjustment via software control on L/R
• Wide band video amplifiers (20 MHz, –3 dB).
• Wide audio dynamic range (3 Vrms typ)
• Serial control via I
• Separate control of video and audio switches.
• High impedance maintained by I
• Configurable dual slave address 90/92.
• I
Applications
Structure
The CXA2149Q is a video and audio switch IC
channel 3.
SCL) even when power is off.
TV’s
Bipolar silicon monolithic IC
2
I
C bus 5 and 3.3 V compatible.
2
C-Bus-Compatible Audio/Video Switch
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.
2
C bus compatibility for TV’s. The IC has
2
C bus.
2
C lines (SDA,
—1—
Absolute Maximum Ratings
• Supply voltage
• Storage temperature
• Allowable power dissipation
Operating Conditions
• Supply voltage
• Typical supply current
• Operating temperature
CXA2149Q
64 pin QFP (Plastic)
Topr
Tstg
V
V
(Ta=25 °C unless stated)
P
CC
CC
D
–65 to +150
–20 to +75
9+/–0.5
900
12
75
E99946A9Y-TE
mW
mA
°C
°C
V
V

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CXA2149 Summary of contents

Page 1

... I 2 C-Bus-Compatible Audio/Video Switch For the availability of this product, please contact the sales office. Description The CXA2149Q is a video and audio switch IC featuring bus compatibility for TV’s. The IC has input pins that are compatible with the SCART protocols. It offers other features such as an ...

Page 2

... CVOUT1 11 YOUT1 0dB 10 TRAP1 0dB 13 COUT1 6dB CVOUT2 43 0dB 45 YOUT2 46 TRAP2 0dB COUT2 VVCC1 VBIAS BIAS 57 , VGND1 BIAS 21 AVCC 22 ABIAS 31 AGND 6dB 39 LOUT1 6dB 38 ROUT1 6dB LOUT2 41 6dB 40 ROUT2 6dB 23 LOUT3 0 to –63dB 6dB 24 ROUT3 0 to –63dB CXA2149Q ...

Page 3

... CVIN2 60 TC2 61 CVIN1 62 63 TC1 CXA2149Q —3— CXA2149Q 32 RTV AGND 31 30 LV1 29 LV2 28 LV3 27 LV4 26 LV5 25 LTV 24 ROUT3 23 LOUT3 22 ABIAS 21 AVCC 20 MODE3 ...

Page 4

... 1.8m —4— Description Video signal inputs. Luminance signal inputs. Chrominance signal inputs. Audio signal inputs. Composite video signal outputs. Luminance signal outputs. Chrominance signal outputs. TV signal group delayed output. CXA2149Q ...

Page 5

... Group delay inputs from external 1.7k 6 filter Pin connection for 39 kΩ group delay 3.8V setting resistor. Pin voltage is group 1 delay control dependent. Digital supply. Video supply. Video supply. Audio supply. Digital ground. Video ground. Video ground. Audio ground. —5— CXA2149Q Description ...

Page 6

... GND. 20k V CC Internal reference bias for video circuits. A capacitor is connected 55 4.5V from this pin to GND bus clock line bus data line Slave address control. 16 72k 17 28k Audio signal output mute. —6— CXA2149Q Description ...

Page 7

... Equivalent circuit V CC Open collector logic outputs control Function SCART inputs from SCART 25k 20 connectors. 25k V CC Video detect time constant capacitor 63 connection pins. 147 200 Connects trap circuit for subcarrier. 46 200 53 —7— CXA2149Q Description ...

Page 8

... Conditions Min. Typ. 2.3 — 0 — 0 — 0 — 4.5 — 4 — 4.7 — 4 — 4.7 — 5 — 250 — — — — — 4.7 50 CXA2149Q Max. Unit 9.5 V 100 mA Max. Unit 5 V 1.5 V 0.4 V 100 kHz — µs — µs — µs — µs — µs — s — µ ...

Page 9

... Zout f=1 kHz, 1 Vrms input. VPD A Compare left and right channels. f=1 kHz, 1 Vp-p input with S kHz passband. See note 1. Amute f=1 kHz, 1 Vp-p input. f=1 kHz, 0.5 Vp-p input. FEVC CEVC —9— CXA2149Q Min. Typ. Max. Unit –0.5 0 0.5 dB –0.5 0 0.5 dB –68 –63 –58 dB — ...

Page 10

... Min. Typ. 5.5 6 –0 1.4 — 1.7 — — –55 — 72 –1.5 0 –1.5 0 200 250 100 — 91 — — — — — CXA2149Q Max. Unit 6.5 dB 0.5 dB — MHz — MHz — Vp-p — Vp-p — dB — dB 1.5 % 1.5 Deg 350 ns — mV — ...

Page 11

... SYNC is detected, or below 84 % when SYNC is not detected. To prevent occasional video disturbances such as IF noise from the tuner causing malfunctioning of the SYNC detector, a time constant of approximately 14 line periods is applied during which the status of the SYNC detection is maintained. —11— CXA2149Q ...

Page 12

... ROUT1 LOUT1 ROUT2 LOUT2 DGND CVOUT2 DVCC YOUT2 TRAP2 COUT2 VGND2 BC547B 1k BC547B 1k BC547B 1k BC547B MODE2 MODE1 MUTE ADR 200 SDA 200 SCL COUT1 VVCC2 YOUT1 TRAP1 CVOUT1 LO1 RGD1 RGD2 LO0 RGD3 RGD4 TVOUT REXT —12— CXA2149Q ...

Page 13

... RV5 1k RV4 1k RV3 1k RV2 1k RV1 ROUT1 LOUT1 ROUT2 LOUT2 DGND CVOUT2 DVCC YOUT2 TRAP2 COUT2 VGND2 MODE2 MODE1 MUTE ADR 200 SDA 200 SCL COUT1 VVCC2 YOUT1 TRAP1 CVOUT1 LO1 RGD1 RGD2 LO0 RGD3 RGD4 TVOUT REXT —13— CXA2149Q ...

Page 14

... RV5 RV4 RV3 RV2 RV1 ROUT1 LOUT1 ROUT2 LOUT2 DGND CVOUT2 DVCC YOUT2 TRAP2 COUT2 VGND2 MODE2 MODE1 MUTE ADR 200 SDA 200 SCL COUT1 VVCC2 YOUT1 TRAP1 CVOUT1 LO1 RGD1 RGD2 LO0 RGD3 RGD4 TVOUT REXT —14— CXA2149Q ...

Page 15

... CVIN1 and YOUT2. SYNC1 or SYNC2 bit Meaning 0 no SYNC 1 SYNC present CVOUT1 YCOUT1 AOUT1 Group Delay AOUT3 Volume Control SYNC1 SYNC2 Switch Switch —15— ADR Mode Status 0 0 ADR CVOUT2 YCOUT2 AOUT2 AOUT3 AOUT3L/R Fine CXA2149Q R/W POR R/W Switch ...

Page 16

... Internal TV External 16:9 Internal TV External 16:9 External 16:9 External 16:9 External 16:9 External 16:9 External 16:9 External 16:9 External 4:3 External 16:9 External 4:3 External 16:9 External 4:3 External 16:9 Internal TV External 4:3 Internal TV External 4:3 Internal TV External 4:3 External 16:9 External 4:3 External 16:9 External 4:3 External 16:9 External 4:3 External 4:3 External 4:3 External 4:3 External 4:3 External 4:3 External 4:3 Not used Not used —16— CXA2149Q ...

Page 17

... Not used CVOUT2 Data1 Bits These bits select the input signal that will be output on the CVOUT2 pin. CVOUT2 Input or function selected 0000 TV 0001 CVin1 0010 CVin2 0011 Y1 0100 Y2 0101 Y3 0110 Y1+C1 0111 Y2+C2 1000 Y3+C3 1001 Mute 1010 to 111 Not used —17— CXA2149Q ...

Page 18

... These bits select the input signals that will be output on the YOUT2/COUT2 pins. YCOUT2 Input or function selected 000 TV and Mute 001 CVin1 and Mute 010 CVin2 and Mute 011 Mute and Mute 100 Y1 and C1 101 Y2 and C2 110 Y3 and C3 111 Mute and Mute —18— CXA2149Q ...

Page 19

... These bits select the input signal that will be output on ROUT3 and LOUT3 AOUT3 bits Input or function selected 000 Mute 001 LTV and RTV 010 LV1 and RV1 011 LV2 and RV2 100 LV3 and RV3 101 LV4 and RV4 110 LV5 and RV5 111 Mute —19— CXA2149Q ...

Page 20

... Fine bits Gain of AOUT3 channels 000 0 dB 111 –7 dB AOUT3L/R Switch Data5 Bits 0 and 1 Controls which of channel 3’s left or right channels is output to LOUT3 and ROUT3, respectively. AOUT3L/R bits Output to LOUT3 and ROUT3 00 Normal 01 Left channel 10 Right channel 11 Inverted —20— CXA2149Q ...

Page 21

... See the description for mode status. LO0 and LO1 Logic Outputs LO0 and LO1 are open collector output I application may require. See the description for LO0 and LO1 control controllable logic switch for any external switching functions an —21— CXA2149Q ...

Page 22

... DVCC 10 YOUT2 TRAP2 0.1 COUT2 VGND2 0 0 —22— 0.1 0.1 MODE2 MODE1 MUTE ADR SDA 220 SCL 220 COUT1 0.1 VVCC2 YOUT1 10 TRAP1 180 CVOUT1 10 LO1 RGD1 RGD2 LO0 RGD3 RGD4 TVOUT 10 REXT 0 CXA2149Q 9V 0.1 10p 39k (1%) ...

Page 23

... Values may require adjustment dependent upon the application. Each trap gives 6 dB’s of attenuation at the desired frequency. 5. LO0 and LO1 connected to ground when not required. 6. Connect all NC to ground in application. —23— CXA2149Q ...

Page 24

... HPE, 80kHz LPF –30 –40 –50 –60 –70 –80 –90 –100 –110 0.5 1 Input amplitude [Vrms] 100000 1000000 Frequency [Hz] Video system typical frequency response –2 –4 –6 –8 –10 1 1.5 2 2.5 3 —24— 10 Frequency [MHz] TV-CVOUT1 Y1-CVOUT2 (Mx) CXA2149Q 100 ...

Page 25

... SONY CODE EIAJ CODE JEDEC CODE 64PIN QFP(PLASTIC) 23.9 ± 0.4 + 0.4 20.0 – 0 0.15 1.0 0.4 – 0.1 PACKAGE STRUCTURE PACKAGE MATERIAL QFP-64P-L01 LEAD TREATMENT LEAD MATERIAL QFP064-P-1420 PACKAGE MASS —25— + 0.1 0.15 – 0.05 0. 0.2 0.1 – 0.05 + 0.35 2.75 – 0.15 0° to10° M 0.2 EPOXY RESIN SOLDER/PALLADIUM PLATING 42/COPPER ALLOY 1.5g CXA2149Q ...

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