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參數資料
| 型號： | W91031 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | LOW POWER CMOS INTERGRATED CIRCUIT |
| 中文描述： | TELEPHONE CALLING NO IDENT CKT, PDSO24 |
| 封裝： | 0.300 INCH, PLASTIC, SOP-24 |
| 文件頁數： | 12/29頁 |
| 文件大小： | 274K |
| 代理商： | W91031 |
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Preliminary W91031
- 12 -
Demodulated
internal
bit stream
start
0
b0
b1
b2
b3
b4
b5
b6
b7
1
0
stop
stop
start
DATA
b0 b1 b2 b3 b4 b5 b6 b7
DCLK
FDRN
1/f
DCLK1
b7
b6
b5
1
b0
b0
b7
b6
t
DDS
t
DDH
Nth byte data
(N + 1)th byte data
(N - 1)th byte data
Nth byte data
t
RL
Note 2
Note 1
1. FDRN cleared to high by DCLK.
2. FDRN not cleared, low for maximum time (1/2 bit width).
Notes:
Figure 7-8. Serial Data Interface Timing of FSK Demodulation in Mode 1
Other Functions
Interrupt
The interrupt INTN is an open drain output and is used to interrupt the microcontroller. Either RNGON
low, FDRN low or ALGO high will set INTN low and will remain low until all of these three pins return
to an inactive state. The microcontroller must read these pins to know what kind of interrupt occurred
and to make the correct interrupt response.
When the system is powered on, there is no charge on the capacitors. The voltage on the RNGRC pin
is low and RNGON will be low. Also the voltage on the ALGRC pin is high and ALGO will be high if
the SLEEP pin is low. This will cause an interrupt upon power up which will not be cleared until both
capacitors are charged. The microcontroller should therefore ignore the interrupt from these source
until the capacitors are charged up. The microcontroller can examine the RNGON and ALGO pins
and wait until these signals are inactive during a power on interrupt.
It is possible to clear the ALGO pin and its interrupt quickly by setting the SLEEP pin high. In the
sleep mode, the ALGO pin is forced low and the charge switch in Figure 7-4 will turn on, forcing the
capacitor to charge up rapidly.
Sleep Mode
The W91031 can go into a sleep mode by setting SLEEP high, resulting in reduced power
consumption. In this mode, the gain control op-amp, oscillator and all internal circuits, except the ring
detector are disabled. The RNGDI, RNGRC and RNGON pins are not affected, so the device can still
react to call arrival indicators and activate an interrupt to wake up the microcontroller. The sleep
mode can be disabled by the microcontroller.
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PDF描述 |
|---|---|
| W91031S | Calling Line Identifier |
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| W91080A | Tone/Pulse Dialer With Handfree And Keytone Fuctions And One Number Memory(具有一個數碼存儲器免提和主鍵音功能的音頻/脈沖撥號器) |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| W91031S | 制造商:WINBOND 制造商全稱:Winbond 功能描述:Calling Line Identifier |
| W91031SG | 功能描述:IC CALL LINE IDENT 24-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 電信 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS 產品變化通告:Product Discontinuation 06/Feb/2012 標準包裝:750 系列:* |
| W91031SG (SA5825) TR | 制造商:Nuvoton Technology Corp 功能描述:FSK DECORDER WITH CALL ON WAIT |
| W91031SG T&R | 制造商:Nuvoton Technology Corp 功能描述:IC CALL LINE IDENT 24-SOIC |
| W91031SG T&R | 功能描述:IC CALL LINE IDENT 24-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 電信 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS 產品變化通告:Product Discontinuation 06/Feb/2012 標準包裝:750 系列:* |
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