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AN7500FHQ

Panasonic Semiconductor
Part Number AN7500FHQ
Manufacturer Panasonic Semiconductor
Description aUDIO SIGNAL PROCESSING ic FOR 1.5 v HEADPHONE STEREO
Published Mar 26, 2005
Detailed Description ICs for Radio-Cassette, Cassette Deck AN7500FHQ Audio signal processing IC for 1.5 V headphone stereo s Overview The AN...
Datasheet PDF File AN7500FHQ PDF File

AN7500FHQ
AN7500FHQ

Overview
ICs for Radio-Cassette, Cassette Deck AN7500FHQ Audio signal processing IC for 1.
5 V headphone stereo s Overview The AN7500FHQ is a single chip IC optimum for a 1.
5 V headphone stereo system including pre-amp.
, power amp.
and Dolby B type noise reduction circuit.
Current consumption in a Dolby circuit off mode has been drastically reduced and an operating supply voltage has also been lowered to 0.
98 V.
Much fewer external components have been realized due to an integration of audio signal processing system into a single chip circuitry in a small outline package and space saving mounting of a set.
9.
00±0.
40 7.
00±0.
20 36 37 25 24 (0.
75) 7.
00±0.
20 9.
00±0.
40 13 1 12 0.
20–0.
05 +0.
10 Unit: mm 48 (0.
75) 0.
50 (0.
625) 1.
40±0.
10 1.
70 max.
s Features • Reduction by power consumption of approximately 35% as compared with conventional products, contributing to low power consumption of a set.
• Eliminating the DC/DC converter so far needed for conventional system due to 1.
5 V single power supply, and reducing approx.
40% of external components.
This contributes to space saving in a set.
• Built-in standby switch to reduce consumption current considerably.
Seating plane 0.
15–0.
05 +0.
10 (1.
00) LQFP048-P-0707 s Applications • Headphone stereo (0.
625) 0.
10±0.
10 0° to 10° 0.
50±0.
20 1 AN7500FHQ s Block Diagram ICs for Radio-Cassette, Cassette Deck 33 N.
R.
out (L) 37 38 VREF PB out (L) 39 160 Ω 86 kΩ 100 kΩ VREF 25 PWR in (R) 24 23 22 21 27 PWR in (L) N.
R.
in (L) 29 SB out (L) 36 35 IREF 34 32 31 30 28 40 25 kΩ REV in (L) 41 42 FWD in (L) VREF FWD in (R) 26 200 kΩ 20 19 PWR out (R) VCC GND 43 44 Bias 18 PWR out (L) 17 AGC 200 kΩ VREF VREF 100 kΩ Ripple filter 16 15 14 86 kΩ 13 REV in (R) 45 25 kΩ 46 47 48 N.
R.
FWD REV On Off mute PB out (R) 160 Ω Control STBY 10 Low BST 11 N.
R.
in (R) 3 ASC N.
R.
out (R) 2 Power mute SB out (R) 12 1 2 4 5 6 7 8 9 ICs for Radio-Cassette, Cassette Deck s Pin Descriptions Pin No.
1 2 3 4 5 6 7 8...


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