Philips CD 960

[@lf]

I have Philips CD 960 with four JRC5534 op-amps in output stage. In Philips CD960 tech doc NJM5534

Any direct replacements for this JRC5534 op-amps?


Thanks for advice.

[poynton]

Originally posted by @lf
I have Philips CD 960 with four JRC5534 op-amps in output stage. In Philips CD960 tech doc NJM5534

Any direct replacements for this JRC5534 op-amps?


Thanks for advice.

Hi.

Almost any of the better dual opamps will replace the 5534 directly or you could try opa627's on browndog converters.

However, there is a new kid on the block in the form of National Semiconductor's LM4562 which seems to be even better !! Try to get some on the sample program.

Andy

[tubenut]

STOP!!!!!!


5534 is single!!!!
5532 dual!!! I know, makes no sense but it is.

[@lf]

What about AD825?

And what is the difference between NJM 5534 and JRC 5534?

[FastEddy]

Unless the Google lied: the slew rate and noise rejection of the AD825 is a whole lot better ==> ~10X better.

( 825: http://www.analog.com/en/prod/0,,759_786_AD825,00.html )
( 5534: http://www.njr.co.jp/pdf/ae/ae04059.pdf )

Pin out & voltage requirements are the same / same.

AD825:
-3dB Bandwidth 46MHz
Slew Rate 140V/µs (??)
Vos 1mV
Ib 10pA
Input Noise (nV/rtHz) 12nV/rtHz
Vcc-Vee Supply (V) 10 to 36
Iq per Amplifier (max) 7.2mA
# OpAmps per Pkg 1
Operating Temp Range -40 to +85
Packages SOIC
...
41 MHz, -3 dB bandwidth
125 V/µs slew rate (??)
80 ns settling time
Input bias current of 20 pA and noise
current of 10 fA/√Hz
Fully specified power supplies: ±5 V to ±15V
Input voltage noise of 12 nV/√Hz
Low distortion: -76 dB at 1 MHz
High output drive capability
Drives unlimited capacitance load
50 mA min output current
No phase reversal when input is
at rail
........

JRC5534 / NJM5534:
Operating Voltage ( ±3V~±22V )
Single Circuit
With VIO Trim Terminal
Low Input Noise Voltage ( 3.3nV/?Hz typ.@ 1kHz )
Power Bandwidth ( 200kHz typ. )
Slew Rate ( 13V/?s typ. )
Package Outline DIP8,DMP8
Bipolar Technology ...
Input Offset Voltage VIO RS?10k? - 0.5 4 mV
Input Offset Current IIO - 20 300 nA
Input Bias Current IB - 500 1500 nA
Input Resistance RIN 30 100 - k?
Large Signal Voltage Gain AV RL?2k?,VO=±10V 88 100 - dB
Maximum Output Voltage Swing VOM RL?600? ± 12 ± 13 - V
Input Common Mode Voltage Range VICM ± 12 ± 13 - V
Common Mode Rejection Ratio CMR RS?10k? 70 100 - dB
Supply Voltage Rejection Ratio SVR RS?10k? 80 100 - dB
Operating Current ICC RL=? - 4 8 mA
Transient Response Rise Time tR VIN=50mV,RL=600?,CL=100pF,Cc=22pF - 35 - nsec
Overshoot VIN=50mV,RL=600?,CL=100pF,Cc=22pF - 17 - %
Slew Rate SR Cc=0 - 13 - V/?s
Gain Bandwidth Product GB Cc=22pF,CL=100pF - 10 - MHz
Power Bandwidth WPG Vo=20VP-P,Cc=0 - 200 - kHz
Equivalent Input Noise Voltage VNI f=20Hz~20kHz - 1.0 - ?Vrms
Equivalent Input Noise Current INI f=20Hz~20kHz - 25 - pArms
Equivalent Input Noise Voltage 1 en1 fO=30Hz - 5.5 - nV/?Hz
Equivalent Input Noise Voltage 2 en2 fO=1kHz - 3.3 - nV/?Hz
Equivalent Input Noise Current 1 in1 fO=30Hz - 1.5 - pA/?Hz
Equivalent Input Noise Current 2 in2 fO=1kHz - 0.4 - pA/?Hz
Broadband Noise Figure NF f=10Hz~20kHz,RS=5k? - 0.9 - dB

[@lf]

Thanks for the info...
Any other advice?....

[FastEddy]

Other advise?? If you got 'em, use 'em ... the '825 that is ... or something equal. (The pin connections are the same for a whole range of "standard" Op-Amps = )

It might be difficult to tell the audio output differences without instruments, as there are certainly other components around the Op-Amp that are more important to audio quality than the band width & slew rate of the Op-Amps ... but you might see some interesting improvements in quality.

You might also explore cleaning up and clarifying the power supply ... like adding some plasic snubbing caps, etc. = DIY common practices rule.

[Guido Tent]

Originally posted by FastEddy
Other advise?? If you got 'em, use 'em ... the '825 that is ... or something equal. (The pin connections are the same for a whole range of "standard" Op-Amps = )

It might be difficult to tell the audio output differences without instruments, as there are certainly other components around the Op-Amp that are more important to audio quality than the band width & slew rate of the Op-Amps ... but you might see some interesting improvements in quality.

You might also explore cleaning up and clarifying the power supply ... like adding some plasic snubbing caps, etc. = DIY common practices rule.

if you don't want to spend a fortune, try OPA 134 (single) or OPA2134 (dual). Within their price range these are the best you can get.

best

[@lf]

OK. Soldered four AD825 opamps in two hours
CD960 has new opamps and play... Sound is good...

[@lf]

...one more picture...

Thank you FastEddy

If you don't want to spend a fortune, try OPA 134 (single) or OPA2134 (dual). Within their price range these are the best you can get.

Thank you Guido.
Do you have any info where I can find OPA 134 in Europe?