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PDF API840 Data sheet ( Hoja de datos )
| Número de pieza | API840 | |
| Descripción | 32 to 40 SEC INSTANT VOICE ROM | |
| Fabricantes | Apuls Intergrated Circuits | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de API840 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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APLUS
32 to 40 SEC INSTANT VOICE ROM
API840N
JUNE 1999
FEATURES
* Voice length at
- 8 KHz sampling is 32 seconds
- 6 KHz sampling is 40 seconds
* Silence compression to save memory
* Eight trigger pins,TG1 to TG8 for 32 sections
* SBT pin play-all or sequential play-all
* 15 ms debounce time suitable for CDS
* IRP interrupt pin stops playback at once
* STP stop pulse generated at end of playback
* BUSY signal for CPU control
* Two LEDs flash at 3 Hz internal
* 3.0V to 6V single power supply operation
* Low standby current (<5 mA at 3V)
* Auto-power down
* Built-in oscillator, D/A converter, EPROM
* ADPCM data compression
* Optional pop noise elimination function
* COUT pin drives speaker with a transistor
* Development tools support
* VOUT1 and VOUT2 drives buzzer directly
* Sampling rate determined by external resistor
* Holdable and unholdable triggering option
* Industrial temperature available
GENERAL DESCRIPTION
API840N is a high-quality voice synthesizer with a capacity
of 32 to 40 seconds. A proprietary ADPCM algorithm is
used. The audio message is stored in a 1024-Kbit on-chip
EPROM.
The API840N eliminates the need of complicated circuitry
in voice playback (Figure 1) but still achieves high voice
quality. Sounds such as human speech, animal sounds,
musical sounds, and even special sound effects can be
synthesized. Devices can be cascaded to achieve longer
voice duration (Figure 3). Two devices can be configured
in parallel (Figure 4) in order to achieve signal mixing
without an external mixer allowing speeches to be mixed
with background music synthesis from two different chips.
The instant programming nature of the API840N allows a
very short production turnaround time. There are no NRE
charges that are usually required with conventional voice
ROMs. Users now can apply a voice synthesis function as
an additional feature to their products even when production
volume is relatively small. It is also ideal for trial or
engineering prototyping. As a result, the initial investment
is minimal and the risk in the product development phase
is reduced.
The API840N provides a wide voltage operating range
from 3.0V to 6.0V. A pair of PWM output pins, VOUT1 and
VOUT2 provide direct drive to a buzzer (Figure 2). Voice
quality from a buzzer is comparable to speaker output and
power consumption is much lower.
A current output pin, COUT, enables the device to drive a
speaker with a low cost NPN transistor. No complex
filtering or amplifier circuit is needed. An automatic ramp
up/down function eliminates the undesired noise at the
end of playback.
Up to 32 sections are accessible through TG1 to TG8.The
SBT trigger pin can be programmed to playback all 32
sections or sequentially from section 1 to 32. An interrupt
pin (IRP) and stop pulse (STP) or BUSY signals provide
handshaking with microprocessors or other API840N
devices. All trigger pins give 15 ms debounce time and is
ideal for CDS applications as in Figure 6. Two LED drivers
are available, flashing on and off at approximately 3Hz
intervals (Figure 5). The internal voltage compensation
oscillator requires only one external resistor. Different
sampling frequencies are determined by the external
oscillator resistor value.
1
1 page  
APLUS
BONDING DIAGRAM
6
7
8
9
10
11
12
13
14
Y 15
X
(0,0)
5
4
3
2
1
20
19
18
17
16
Note: Substrate must be connected to GND
Pad size = 100 mm x 100 mm
Die size:3628mm x 3797mm
DC CHARACTERISTICS
Symbol
VCC
ISB
IOP
VIH
VIL
IOH
IOL
ICO
ISTPH
TSTPL
ILED
DF/F
Parameter Description
Operating Voltage
Standby Current
Operating Current
Input HIGH Voltage
Input LOW Voltage
VOUT LOW O/P Current
VOUT HIGH O/P Current
COUT O/P Current
STP LOW O/P Current
STP HIGH O/P Current
Output Current LED
Frequency Stability
API840N
BONDING PARAMETERS
Pin Name
X
1 TG8 3451.9
2 LED1 3451.9
3
VOUT1
3451.9
4
VOUT2
3451.9
5
GND
3368.10
6 STP 137.18
7 LED2
100.4
8 COUT 100.4
9 OSC 100.4
10 TG5
100.4
11 TG6
100.4
12 VPP
100.4
13 TG1
100.4
14 TG2
100.4
15 VCC
187.05
16 TG3 3372.5
17 TG4 3451.9
18 SBT 3451.9
19 IRP 3451.9
20 TG7
3451.94
Y
1599.7
1861.0
2147.6
2444.5
2803.35
2795.93
2486.3
2245.0
1790.0
1469.5
1230.0
989.6
662.3
422.7
113.78
141.8
581.5
836.0
1090.6
1345.13
Condition
VCC = 3.0V, I/O Open
Vcc = 3.0V, I/O Open
Vcc = 3.0V
Vcc = 3.0V
Vcc = 3.0V, VOUT = 0V
Vcc = 3.0V, VOUT = 3.0V
Vcc = 3.0V, VCOUT = 0.7V
Vcc = 3.0V, VSTP = 0V
Vcc = 3.0V, VSTP = 3.0V
Vcc = 3.0V - 6.0V
FOSC(3V) - F OSC(3.5V)
FOSC (3V)
Min.
3.0
-
-
2.5
-0.3
-
-
-
-
-
6
-
Typ.
4.5
1
-
3.0
0
-12
12
-2
-5
5
8
-
Max.
5.0
5
100
3.5
0.3
-
-
-
-
-
10
5
Unit
V
mA
mA
V
V
mA
mA
mA
mA
mA
mA
%
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet API840.PDF ] | |
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