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参数资料
型号： ISD2575X
厂商： Electronic Theatre Controls, Inc.
英文描述： Single-Chip Voice Record/Playback Devices 32-, 40-, 48-, 64-,60-,75,90-, and 120-Second Durations
中文描述： 单芯片语音记录/播放设备32 - ，40 - ，48 - ，64 - ，60 - ，75,90 - ，120秒持续时间
文件页数： 5/28页
文件大小： 213K
代理商： ISD2575X
Product Data Sheets
ISD2500 Series
1–83
1
V
SSA
CE
EP/R
VNC
A0NC
ANA OUT
V
SP–
V
CCD
CCA
ISD2532/40/48/64
TSOP
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
V
V
SP+
A0/M0
A1/M1
A2/M2
A3/M3
A4/M4
A5/M5
A6/M6
NC
A7
A8
AUX IN
V
P/R
XCLK
EOM
PD
CE
OVF
ANA OUT
ANA IN
AGC
MIC REF
MIC
V
SP–
CCD
CCA
ISD2532
ISD2540
ISD2548
ISD2564
DIP/SOIC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Microphone Input (MIC)
The microphone input transfers its signal to the on-
chip preamplifier. An on-chip Automatic Gain Con-
trol (AGC) circuit controls the gain of this
preamplifier from -15 to 24 dB. An external micro-
phone should be AC coupled to this pin via a series
capacitor. The capacitor value, together with the
internal 10 K ohm resistance on this pin, deter-
mines the low-frequency cutoff for the ISD2500
Series passband. See ISD's
Design Manual
in this book for additional informa-
tion on low-frequency cutoff calculation.
Application Notes and
Microphone Reference Input (MIC REF)
The MIC REF input is the inverting input to the
microphone preamplifier. This provides a noise-
canceling or common-mode rejection input to the
device
when
connected
microphone.
to
a
differential
Automatic Gain Control Input (AGC)
The AGC dynamically adjusts the gain of the
preamplifier to compensate for the wide range of
microphone input levels. The AGC allows the full
range of whispers to loud sounds to be recorded
with minimal distortion. The “attack” time is deter-
mined by the time constant of a 5 K
resistance and an external capacitor (C2 on the
schematic on page 1-100) connected from the
internal
AGC pin to V
time is determined by the time constant of an
external resistor (R2) and an external capacitor
(C2) connected in parallel between the AGC Pin
and V
SSA
analog ground. Nominal values of
470 K
and 4.7
μ
F give satisfactory results in
most cases.
SSA
analog ground. The “release”
Analog Output (ANA OUT)
This pin provides the preamplifier output to the
user. The voltage gain of the preamplifier is deter-
mined by the voltage level at the AGC pin.
Analog Input (ANA IN)
The analog input pin transfers its signal to the chip
for recording. For microphone inputs, the ANA
OUT pin should be connected via an external
capacitor to the ANA IN pin. This capacitor value,
together with the 3.0 K
input impedance of ANA
IN, is selected to give additional cutoff at the low-
frequency end of the voice passband. If the
desired input is derived from a source other than a
microphone, the signal can be fed, capacitively
coupled, into the ANA IN pin directly.
External Clock Input (XCLK)
The external clock input for the ISD2500 devices
has an internal pull-down device. These devices
are configured at the factory with an internal sam-
pling clock frequency centered to
±
1% of
ISD2532/40/48/64
* DEVICE PINOUTS
*
Advance information: ISD2532/40/48/64 devices.
相关PDF资料
PDF描述
ISD2590E Single-Chip Voice Record/Playback Devices 32-, 40-, 48-, 64-,60-,75,90-, and 120-Second Durations
ISD2590T Single-Chip Voice Record/Playback Devices 32-, 40-, 48-, 64-,60-,75,90-, and 120-Second Durations
ISD2590X Single-Chip Voice Record/Playback Devices 32-, 40-, 48-, 64-,60-,75,90-, and 120-Second Durations
ISD2500 Single-Chip Voice Record/Playback Devices 32-, 40-, 48-, 64-,60-,75,90-, and 120-Second Durations
ISD2560E Single-Chip Voice Record/Playback Devices 32-, 40-, 48-, 64-,60-,75,90-, and 120-Second Durations
相关代理商/技术参数
参数描述
ISD2590 制造商:未知厂家 制造商全称:未知厂家 功能描述:Single-Chip Voice Record/Playback Devices 32-, 40-, 48-, 64-,60-,75,90-, and 120-Second Durations
ISD2590E 功能描述:IC VOICE REC/PLAY 90-SEC 28-PDIP RoHS:否 类别:集成电路 (IC) >> 接口 - 语音录制和重放 系列:ISD2500 标准包装:14 系列:- 接口:串行 滤波器通频带:1.7kHz 持续时间:8 ~ 32 秒 安装类型:通孔 封装/外壳:28-DIP（0.300"，7.62mm） 供应商设备封装:28-PDIP 其它名称:90-21300+000
ISD2590ER 功能描述:IC VOICE REC/PLAY 90-SEC 28-PDIP RoHS:否 类别:集成电路 (IC) >> 接口 - 语音录制和重放 系列:ISD2500 标准包装:14 系列:- 接口:串行 滤波器通频带:1.7kHz 持续时间:8 ~ 32 秒 安装类型:通孔 封装/外壳:28-DIP（0.300"，7.62mm） 供应商设备封装:28-PDIP 其它名称:90-21300+000
ISD2590G 制造商:未知厂家 制造商全称:未知厂家 功能描述:
ISD2590P 功能描述:IC MEM VOICE REC/PLAY 90S 28DIP RoHS:否 类别:集成电路 (IC) >> 接口 - 语音录制和重放 系列:ISD2500 标准包装:14 系列:- 接口:串行 滤波器通频带:1.7kHz 持续时间:8 ~ 32 秒 安装类型:通孔 封装/外壳:28-DIP（0.300"，7.62mm） 供应商设备封装:28-PDIP 其它名称:90-21300+000
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