CXA1498S Sony, CXA1498S Datasheet

no-image

CXA1498S

Manufacturer Part Number
CXA1498S
Description
Recording/Playback Equalizer Amplifier for Stereo Tape Recorder
Manufacturer
Sony
Datasheet
For the availability of this product, please contact the sales office.
Description
equalizer amplifier for tape redorder recording/
playback. This IC is particularly well-suited for double
cassette deck applications. An on-chip filter serves to
greatly reduce the number of external parts.
Features
• Recording equalizer amplifier
• AGC (automatic gain control)
• Playback equalizer amplifier
• Electronic switch for playback head
• Electronic switch for tape equalization
• Electronic switch for metal tapes
• Electronic switch for normal/high speed dubbing
• Recording mute function
• DC controllable for fade IN/OUT
• Playback mixing output pin provided
• Use of this IC simplifies the construction of double
Block Diagram and Pin Configuration (Top View)
The CXA1498S/M is a bipolar IC designed as
(Monolithic filter eliminates the need for external
resonance circuit)
(Variable resistor eliminates the need for external
feedback resistor)
(Changes between A and B decks)
(120µs/70µs) (Independently for A and B decks)
(Effective for both REC EQ and PB EQ)
(Soft mute is possible through use of an external
time constant circuit)
(Controls recording mute function)
(For tune selection)
cassette dubbing system
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.
Recording/Playback Equalizer Amplifier for Stereo Tape Recorder
PB IN1
PB IN1
30
1
PB IN2
PB IN2
DECK
DECK
A/B
A/B
29
2
PB FB1
PB FB1
DECK- B
DECK- B
DECK- A
DECK- A
28
3
100k
100k
PB FB2
PB FB2
210k
PB
210k
PB
2
27
4
2
2
OUT
OUT
PB
PB
26
5
OUT
RFS
MS
25
6
I REF
RFC
BIAS &
I REF
24
7
SPEED
DECK
– 1 –
A/B
23
8
PB EQ
CONTROL
Applications
mixing amplifier and AGC for analog stereo tape
recorders
Structure
Absolute Maximum Ratings (Ta = 25°C)
• Supply voltage
• Operating temperature
• Storage temperature
• Allowable power dissipation
Recommended Operating Condition
DECK
-A EQ
DECK
-B EQ
Recording/playback equalizer amplifier, playback
Bipolar silicon monolithic IC
Supply voltage
30 pin SDIP (Plastic)
REC EQ
CONTROL
CXA1498S/M
22
9
METAL
MUTE
CXA1498S
REC
MUTE
CONT
21
10
VGS
AGC
TC
30k
VG
20
11
30k
AGC
AGC
AGC DET
19
12
REC
P
REC
IN
IN
D
13
18
V
Topr
Tstg
SDIP
SOP
V
30 pin SOP (Plastic)
GND
CC
CC
V
REC EQ
REC EQ
CC
GND
V
14
17
CC
CXA1498M
–65 to +150 °C
–20 to +75
4.5 to 10.0
REC
OUT
REC
OUT
16
15
930
630
12
E91860C49-ST
mW
mW
°C
V
V

Related parts for CXA1498S

CXA1498S Summary of contents

Page 1

... Recording/Playback Equalizer Amplifier for Stereo Tape Recorder For the availability of this product, please contact the sales office. Description The CXA1498S bipolar IC designed as equalizer amplifier for tape redorder recording/ playback. This IC is particularly well-suited for double cassette deck applications. An on-chip filter serves to greatly reduce the number of external parts ...

Page 2

... Playback equalizer 10k amplifier output pins. 100k RFS Connection pins for 5 the capacitor that determines the playback equalizer amplifier's time constant (120µs, 70µs, etc Mixed output pin for the L and R outputs of the playback equalizer amplifier. CXA1498S/M ...

Page 3

... GND 200 500 — 11 147 500 100k GND – 3 – CXA1498S/M Description V CC Recording/playback equalizer reference current setting pin. GND Tape speed switching pin. High: high speed Low: normal speed B deck equalizer switching pin High: 70µs EQ Low: 120µ deck metal tape switching pin ...

Page 4

... Recording equalizer amplifier input pins. 24k GND Ground pin Recording equalizer amplifier output pins. VG Power supply voltage V CC pin Connection pin for the 500 To each capacitor that eliminates VGS 500 ripple at the signal reference voltage. 4 CXA1498S/M ...

Page 5

... Description Recording mute control pin. Permits soft mute connecting an external CR time constant circuit Connection pin for the resistance and capacitor used for generating stable voltage by eliminating ripple from the power 25 supply voltage. Stable voltage output pin. , and a capacitor CC CXA1498S/M ...

Page 6

... NORM at 315Hz –20dB 20kHz, –20dB NORM-NORM, 1kHz, +8dB NORM-NORM, 1kHz, 2.0V (pin voltage 10kΩ, 1kHz, –25dBm 10kΩ, 1kHz, –15dBm 10kΩ, 1kHz, 0.0dBm IN – 6 – CXA1498S/M (Ta = 25° 8.0V) CC Min. Typ. Max. Unit 4.5 8.0 10.0 V 7.0 11.5 15.5 mA – ...

Page 7

... Threshold voltage of mode control pin NORM-HIGH = NORMAL Tape, HIGH Speed CrO -HIGH = CrO 2 METAL-HIGH = METAL Tape, HIGH Speed 120µs-HIGH = EQ: 120µs, HIGH Speed 70µs-HIGH = EQ: 70µs, HIGH Speed – 7 – CXA1498S/M Min. Typ. Max. Unit –27.0 –25.0 –23.0 dBm –1.5 ...

Page 8

... CXA1498S/M ...

Page 9

... CXA1498S/M ...

Page 10

... CrO 2 (2) Recording mute (REC MUTE: ON/OFF) (Pin 21) The recording mute function of the CXA1498S is controlled by a recording mute circuit to vary the electric volume for recording equalizer amplifier gain by applying the DC voltage to REC MUTE (Pin 21). Recording mute ON REC MUTE GND ≤ VCL ≤ 0.5V ...

Page 11

... Recording equalizer vs. Frequency characteristics (Double speed) 25 0dB = NORM-NS mode 315Hz, –25dBm at Rec Out METAL-HS 5 CrO - NORM-HS –5 0.125 1.0 FREQ [kHz] Playback equalizer vs. Frequency characteristics 60 5 dB/ 20 0.050 0.1 1.0 FREQ [kHz] – 11 – 120µs-NS 120µs-HS 70µs-NS 70µs- CXA1498S/M ...

Page 12

... AGC output voltage characteristics –10 –15 –20 –25 –30 –35 –35 –30 –25 –20 Input level [dBm] AGC total harmonic distortion 1.0 0.1 0.01 –35 –30 –25 –20 –15 –10 Input level [dBm] – 12 – AGC OFF AGC ON –15 –10 – – CXA1498S/M ...

Page 13

... DETAIL A ± 0.12 M PACKAGE STRUCTURE PACKAGE MATERIAL EPOXY RESIN LEAD TREATMENT SOLDER PLATING SOP-30P-L03 SOP030-P-0375-C COPPER / 42 ALLOY LEAD MATERIAL 0.7g PACKAGE WEIGHT – 13 – CXA1498S/M 0° to 15° + 0.4 2.3 – 0.05 0.10 0.1 ± 0.1 0° to 10° ...

Related keywords