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參數(shù)資料
| 型號(hào)： | TEA7088AFP |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | LOW-RANGE PHONE DEDICATED CHIP |
| 中文描述： | 低檔手機(jī)專用芯片 |
| 文件頁數(shù)： | 7/17頁 |
| 文件大小： | 184K |
| 代理商： | TEA7088AFP |
ELECTRICALSPECIFICATIONS
(continued)
DTMF Generator
(T
amb
= 25
°
C; R
L
= 660
)
Symbol
Amf
Parameter
Test Conditions
Test 6 Pin Osc
fclock = 1.79MHz oscillator off
or
Resonator :3.58MHzoscillator on
C13 =100nF, I
L
= 22mA
Min.
- 0.4
Typ.
Max.
0.4
Unit
%
Tone Frequency Accuracy
Llf
Lhf
Pmf
t
DON
t
DOFF
Cmf
Low Freq. Group Line Level
High Freq. Group Line Level
Preemphasis HF/LF
Rise Time
Decay Time
DTMF Confidence Tone :
Earphone level (low freq.)
Earphone level (high freq.)
- Unwanted Harmonics Level
-10
-8
+1
-8.5
-6.5
+2
-7
-5
+3
5
5
dBm
dBm
dB
ms
ms
13
17
–
17
22
–
21
27
–
mV
mV
–
–
(see Figure 6)
100
1k
10k
(Hz)
100k
1M
-90
-70
-50
-30
V
7
Figure 6 :
UnwantedHarmonics Level in DTMF
V
REFI
I
Start-up
I
Speech
V
L
I(In Ring)
18
V
RING
26
V
RMC
(3.4V)
13
C15
10 F
P
+ LCD
C10
47 F
5.6V
V
MC
Battery
kIL
7
Figure 7 :
Microcontroller Interface
TEA7088A
7/17
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TEA7089A | Low-Range Phone Dedicated Chip(電話模擬前端) |
| TEA7089 | LOW-RANGE PHONE DEDICATED CHIP |
| TEA7089AFP | LOW-RANGE PHONE DEDICATED CHIP |
| TEA7091 | Telephone Analog Front End(電話模擬前端) |
| TEA7092 | TELEPHONE ANALOG FRONT END |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TEA7089 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW-RANGE PHONE DEDICATED CHIP |
| TEA7089A | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW-RANGE PHONE DEDICATED CHIP |
| TEA7089AFP | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW-RANGE PHONE DEDICATED CHIP |
| TEA7091 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TELEPHONE ANALOG FRONT END |
| TEA7092 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TELEPHONE SET INTEGRATED CIRCUIT |
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