cxa2511aq Sony Electronics, cxa2511aq Datasheet

no-image

cxa2511aq

Manufacturer Part Number
cxa2511aq
Description
Dolby B-c Type Noise Reduction System With Playback Equalizer Amplifier
Manufacturer
Sony Electronics
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CXA2511AQ
Manufacturer:
SONY
Quantity:
1 358
Description
stereo cassette decks. Functions include Dolby B-C
type noise reduction (NR) system, playback equalizer
amplifier and music sensor into a single chip.
Features
• Few external parts
• Small package (40-pin QFP)
• Same pin configuration as for the Dolby B type NR
• Dolby B-C type NR and playback equalizer
• FORWARD/REVERSE head select switch
• Two-system (TAPE/AUX) input select switch
• Music signal interval detection level can be set by
• High-frequency cut-off of the music sensor circuit
Applications
• Car stereo cassette decks
• Playback-only cassette decks
The CXA2511AQ is an IC designed for use in car
system (CXA2510AQ) and no Dolby NR system
(CXA2509AQ)
amplifier into a single chip
the external resistors/capacitors (2 modes).
can be adjusted by the external capacitance.
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.
This IC is available only to the licensees of Dolby Laboratories Licensing Corporation from whom licensing and applications
information may be obtained.
"Dolby" and the double D symbols are trademarks of Dolby Laboratories Licensing Corporation.
Dolby B-C Type Noise Reduction System with Playback Equalizer Amplifier
– 1 –
Structure
Absolute Maximum Ratings
• Supply voltage
• Operating temperature Topr
• Storage temperature
• Power dissipation
Operating Condition
Bipolar silicon monolithic IC
Supply voltage
CXA2511AQ
40 pin QFP (Plastic)
V
Tstg
P
V
CC
D
CC
–65 to +150
–40 to +85
7.8 to 11
430
12
E96828-PS
mW
°C
°C
V
V

Related parts for cxa2511aq

cxa2511aq Summary of contents

Page 1

... Dolby B-C Type Noise Reduction System with Playback Equalizer Amplifier Description The CXA2511AQ designed for use in car stereo cassette decks. Functions include Dolby B-C type noise reduction (NR) system, playback equalizer amplifier and music sensor into a single chip. Features • Few external parts • ...

Page 2

... OFF/ B BIAS TAPE/AUX TAPE EQ FWD/RVS V CC LPF OFF/ B/C 120µ/70µ – 2 – CXA2511AQ MSMODE 19 DRSW MS MODE 18 TAPESW 17 INSW 16 NRSW NR MODE 15 NRMODE MS ON/ OFF 14 MSOUT DET 13 DGND 12 MSTC 11 G1FB ...

Page 3

... I 40k 27 40k 5 26 VGS 100k — 100k 6 147 64p – 3 – CXA2511AQ = 8.0V 5.0V Description Vcc 40k Resistance for selecting the 5k playback equalizer amplifier time constant GND Vcc Playback equalizer amplifier output GND Power supply Vcc TAPE input ...

Page 4

... CXA2511AQ Description Vcc Line output GND Vcc Time constant for the HLS GND Vcc Time constant for the LLS GND Vcc Music signal 500 interval detection level setting ...

Page 5

... DGND 15 1. 100k 21 100k 16 1.1k I 100k 18 19 100k – 5 – CXA2511AQ Description Vcc Time constant for detecting the music signal interval 10k GND Vcc Music sensor output GND Dolby NR mode control Vcc Low (open): Dolby B type NR High: Dolby C type NR Line amplifier input ...

Page 6

... I — 50p — PBREF – 6 – CXA2511AQ Description Vcc Music sensor mode control Low (open): G1 High: G2 DGND GND Vcc Resistance for setting the Dolby NR reference current (Connects 20k between DIREF pin and GND for the standard setting ...

Page 7

... VCT 4.0V — 36 PBGND 0.0V — I/O I/O Equivalent circuit resistance 200 O — 33 200 38 147 O — 35 45k — — – 7 – CXA2511AQ Description Vcc Playback equalizer amplifier reference (Vcc/2 output) GND Vcc 30k Center VGS 1 (Vcc/2 output) 30k GND Playback equalizer amplifier ground (Connect to ground.) ...

Page 8

... TAPEIN 1kHz –20dBm 2.7k No signal 5.1k , CCIR/ARM filter used No signal 5.1k , CCIR/ARM filter used TAPEIN 1kHz, NR OFF 2.7k , THD = 1% TAPEIN 1kHz –24dBm, NR OFF, 1kHz BPF used AUXIN 1kHz –24dBm, 1kHz BPF used – 8 – CXA2511AQ (Ta = 25° 8.0V 5.0V Min. Typ. Max. Unit 7.8 8.0 11 ...

Page 9

... TAPEIN 5kHz –30dBm, MS ON, G1 mode, 1mA applied to MSOUT pin Input voltage of NRMODE, NRSW, INSW, TAPESW, DRSW, MSMODE, MSSW Input voltage of NRMODE, NRSW, INSW, TAPESW, DRSW, MSMODE, MSSW external resistor connected to AUXIN1 – 9 – CXA2511AQ Min. Typ. Max. Unit — –67.0 –65 ...

Page 10

... C11 C13 C15 C16 1µ 1µ 270p 2.2µ R22 3.9k C18 C20 C22 0.1µ 0.47µ 0.068µ – 10 – CXA2511AQ R35 10k S23 R34 100 S22 S21 R33 10k R32 100 S20 R31 10k S19 DC Voltmeter 0dB or 30dB Amp MSSW R36 OFF: 0dB ...

Page 11

... C18 R10 2.2µ 2.2µ 2.2µ 0.1µ 0.001µ 0.068µ 12k R13 GND GND GND GND 33k AUXIN1 LINEOUT1 22µ GND – 11 – CXA2511AQ C19 0.068µ MSMODE 20 DRSW 19 From MS MODE Microcomputer TAPESW 18 INSW 17 NRSW NR MODE 16 NRMODE 15 R19 ...

Page 12

... C16 C18 R10 2.2µ 2.2µ 2.2µ 0.1µ 0.001µ 0.068µ 12k R7 GND GND GND GND 300k AUXIN1 LINEOUT1 22µ GND – 12 – CXA2511AQ C19 0.068µ MSMODE 20 DRSW 19 From Microcomputer TAPESW 18 INSW 17 NRSW NR MODE 16 NRMODE 15 R17 MS ON/ ...

Page 13

... AMP2 is an input selector and a line amplifier. The gain is 24dB when NR is OFF. The Dolby NR reference level is –6dBm (LINEOUT). 24dB 24dB OFF 24dB TAPE AUX AMP2 70µs PBEQ PBOUT AUXIN TAPEIN (–30dBm) Fig. 1. Signal route block diagram – 13 – CXA2511AQ NR LINEOUT (–6dBm Dolby level) ...

Page 14

... TEAC Corporation, Japan (part no. MTT150) 6. TEAC Corporation of America (part no. MTT150) 7. Victor Company of Japan, Ltd. (part no. TMT-6130, VTT-727) 8. Sony Corporation (part no. TY-256) –30dBm PBOUT TAPEIN AUXIN PBOUT VR adjustment –30dBm TAPEIN AUXIN – 14 – CXA2511AQ –6dBm (Dolby level) LINEOUT –30dBm –6dBm (Dolby level) LINEOUT –30dBm ...

Page 15

... Fig. 3. Playback equalizer amplifier block diagram The CXA2511AQ achieves the frequency response of Fig.4 with the circuit configuration shown in Fig. 3. Two systems (FORWARD and REVERSE) of playback head input are provided for each channel. The FORWARD input pin is selected when DRSW (Pin 19) is Low; REVERSE is selected when DRSW is High ...

Page 16

... Fig. 5. Music sensor block diagram Music signal interval Signal detection level detection level –39.5dBm –59.5dBm G1 (FF) G2 (NOR) 87 870 Frequency [Hz] – 16 – CXA2511AQ Vcc DVcc R11 MSOUT AMP3 R7 11.1k DGND DGND MSTC R10 C4 Cut-off frequency –41.4dBm 870Hz –61.4dBm ...

Page 17

... Operating mode control method The CXA2511AQ has a Dolby NR mode select switch (NRMODE), Dolby NR switch (NRSW), playback equalizer amplifier select switch (TAPESW), head input select switch (DRSW), music sensor mode select switch (MSMODE) and music sensor switch (MSSW). The operating modes for each switch are shown in the following table. ...

Page 18

... C type decode boost characteristics –40dB 0dB = Dolby Level 16 12 –30dB 8 –20dB 4 –10dB 25°C –4 0dB 10k 100 – 18 – CXA2511AQ 70µs PBEQ1 PBOUT1 18k 0.01µ 12k 300k 2.2µ 270 PBREF –60dB –50dB –40dB –30dB –20dB –10dB 0dB 1k 10k Frequency [Hz] ...

Page 19

... Input: Input: TAPEIN1 TAPEIN1 Output: LINEOUT1 Output: LINEOUT1 8. 0dB = Dolby Level 0dB = Dolby Level 0 10 – –10 –6 – 19 – CXA2511AQ Ta = 25° 10kHz 100Hz 1kHz – Output level [dBm] ...

Page 20

... Music signal and signal interval detection level characteristics 5kHz –30 Input: TAPEIN1 –40 G1 Music signal detection level –50 –60 –70 1k HPF connection resistance [ ] – 20 – CXA2511AQ Ta = 25°C NR OFF 10k 24dB PBOUT1 TAPEIN1 LINEOUT1 12k 2.2µ 300k Ta = 25°C Music signal interval detection level ...

Page 21

... This product uses S-PdPPF (Sony Spec.-Palladium Pre-Plated Lead Frame). 40PIN QFP (PLASTIC) 9.0 ± 0.4 + 0.4 7.0 – 0 0.15 0.3 – 0.1 M ± 0.12 PACKAGE STRUCTURE A PACKAGE MATERIAL LEAD TREATMENT LEAD MATERIAL QFP040-P-0707 PACKAGE WEIGHT – 21 – CXA2511AQ + 0.35 1.5 – 0.15 + 0.1 0.127 – 0.05 0.1 A EPOXY RESIN SOLDER / PALLADIUM PLATING COPPER / 42 ALLOY 0.2g ...

Related keywords