|
|
PDF AN7500FHQ Data sheet ( Hoja de datos )
| Número de pieza | AN7500FHQ | |
| Descripción | aUDIO SIGNAL PROCESSING ic FOR 1.5 v HEADPHONE STEREO | |
| Fabricantes | Panasonic Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AN7500FHQ (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
|
No Preview Available !
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 drasti-
cally 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.
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 con-
ventional 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.
s Applications
• Headphone stereo
9.00±0.40
7.00±0.20
36 25
37 24
Unit: mm
48
(0.75) 1
13
0.50
12
0.20–+00..1005
Seating plane
LQFP048-P-0707
(1.00)
0° to 10°
0.50±0.20
1
1 page  
ICs for Radio-Cassette, Cassette Deck
AN7500FHQ
s Electrical Characteristics at VCC = 1.2 V, f = 1 kHz, RL = 32, Ta = 25°C (continued)
Parameter
Symbol
Conditions
Min Typ Max Unit
Heavy low sound + power amp. block (continued)
Channel separation 2
CS2(PW) Sincgle ch. input, Low boost on,
25 31
Rg = 0, VO = −22.2 dBV, 1 kHz, BPF
dB
Output noise voltage 1
Output noise voltage 2
Ripple rejection factor 1
VNO1(PW) Rg = 0, IHF-A
VNO2(PW) Low boost on, Rg = 0, IHF-A
RR1(PW) Rg = 0, VRR = −32.2 dBV,
fRR = 100 Hz, IRFO = 15 mA,
BPF: 100 Hz, 1/4 OCT
−91 −86 dBV
−86 −82 dBV
60 72 dB
Ripple rejection factor 2
RR2(PW) Low boost on, Rg = 0,
40 61
VRR = −32.2 dBV, fRR = 100 Hz,
IRFO = 15 mA, BPF: 100 Hz, 1/4 OCT
dB
Input resistance
Channel balance
Mute output voltage
AGC level
RIN(PW)
7.2 9.5 12
CB(PW) VO = −22.2 dBV
−1.5 0 1.5
VMUTE(PW) VIN = −32.2 dBV
−96 −90
VAGC
VIN = −45.2 dBV, f = 100 Hz,
−17.3 −14.7 −13.1
RL = 32 Ω,
AGC level to be measured at 32 Ω end.
kΩ
dB
dBV
dBV
Output DC step
DV(PW) PWR mute (pin 12) on/off
−30 0 30 mV
Dolby block
Reference input level *1
VIN(NR) N.R.: Off, BEF: Off, f = 1 kHz,
VO = −32.2 dBV
−33.9 −32.8 −31.7
Channel balance
CB(NR) (Calculation) channel ratio of the above −1
VIN
0
1
N.R. decode characteristics 1 *2 G(NRD1) N.R.: On, BEF: Off, f = 10 kHz,
VIN = −29.6 dB,
Calculation NRD = VO +40 (dB)
−2 0
2
N.R. decode characteristics 2 *2 G(NRD2) N.R.: On, BEF: Off, f = 1 kHz,
VIN = −23.9 dB,
Calculation NRD = VO +30 (dB)
−2 0
2
N.R. decode characteristics 3 *2 G(NRD3) N.R.: On, BEF: Off, f = 1 kHz,
VIN = −15.8 dB
Calculation NRD = VO +20 (dB)
−3.0 0 3.0
N.R. decode characteristics 4 *2 G(NRD4) N.R.: On, BEF: Off, f = 10 kHz,
VIN = −17.4 dB
Calculation NRD = VO +20 (dB)
−2.5 0 2.5
N.R. decode characteristics 5 *2 G(NRD5) N.R.: On, BEF: Off, f = 10 kHz,
VIN = 0.4 dB,
Calculation NRD = VO (dB)
−2 0
2
dBV
dB
dB
dB
dB
dB
dB
Note) *1: Adjust an input level to get an output level of −3.2 dBV at a measuring point (N.R. out) so that you can get 0 dB of reference
input level.
*2: VO in the calculating equation is the output level based on reference of 0 dB = −32.2 dBV (measuring point: N.R. out).
5
5 Page 
ICs for Radio-Cassette, Cassette Deck
s Terminal Equivalent Circuits (continued)
Pin No.
Equivalent circuit
Description
17 VRPF AGC TAU:
AGC time constant
17
AN7500FHQ
Waveform/voltage
(at VCC = 1.2 V)
18
21
Pin 18
21
60 kΩ
4 kΩ
GND
VCC
Pin 18: PWR out (L)
Pin 21: PWR out (R):
Power amp. voltage output
GND
19 GND pin
20 VCC power supply pin
22
15 kΩ
VRPF L-BST C:
Low boost capacitor pin
7.5 kΩ
22 7.5 kΩ
15 kΩ
VREF
23
45 kΩ
GND
VRPF
LPF2-C:
LPF2 capacitor pin
15 kΩ
23 7.5
kΩ
VREF
GND
DC 0.6 V
0V
1.2 V
DC 0.78 V
DC 0.78 V
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet AN7500FHQ.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AN7500FHQ | aUDIO SIGNAL PROCESSING ic FOR 1.5 v HEADPHONE STEREO | Panasonic Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |