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參數(shù)資料
| 型號： | TSC73M223 |
| 廠商： | TDK Corporation |
| 英文描述： | 1200 Baud FSK Modem |
| 中文描述： | 1200波特率FSK調(diào)制解調(diào)器 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 45K |
| 代理商： | TSC73M223 |
73M223
1200 Baud FSK Modem
3
PIN DESCRIPTION
PIN NO.
1
2
3
4
5
PIN NAME
VDD
RXA
CAP
RXF
FIL
DESCRIPTION
Positive Supply Voltage. Bypasses to Vss with 0
.1 μF capacitor.
Receive Analog Input. Analog input from the telephone network.
Capacitor. Connect a 0.1μF capacitor between Pin 3 and ground (VSS).
Filtered Receive Analog Input
Analog Input Control. A logical 1 selects the filtered input. A logical 0 selects
the non-filtered input.
Self-Test Mode Control. Normal operation when a logical 0.A logical 1 places
the device into the self-test mode. A low appears at RXD, to indicate a
properly functioning device.
Transmitter Control. A logical 0 selects transmit mode. A logical 1 selects a
stand-by condition forcing TXA to VDD/2 VDC.
Ground
Synchronous Clock Output. Digital output synchronized with the 1200 bit/s
received data when
6<1LVORZ
and used to sample the received data or eye
pattern. The falling edge of SYNC should be used to sample RXD. When
6<1
LVKLJKD
1200 H
]FORFNLVRXWSXW
Sync Enable. A logic 0 locks the SYNC clock PLL to the 1200 baud receive
data. A logic 1 disables the receive data PLL, and connects SYNC to the 1200
HZ reference.
Receiver Digital Output
Transmitter Digital Input
Crystal Input (3.1872 MHz) or External Clock Input
Crystal Return
1200 Hz Square wave Output. Can drive up to 10 CMOS loads.
Transmitter Analog Output
6
TEST
7
7;
8
9
VSS
SYNC
10
6<1
11
12
13
14
15
16
RXD
TXD
OSC
1
OSC
2
CLK
TXA
ELECTRICAL SPECIFICATIONS
Recommended conditions apply unless otherwise specified.
ABSOLUTE MAXIMUM RATINGS
Operation outside these rating limits may cause permanent damage to this device.
PARAMETER
Power Supply Voltage (VDD-VSS)
Analog Input Voltage at RXA
Analog Input Voltage at RXF
Digital Input Voltage
Storage Temperature Range
RATING
14 V
- 0.3 to VDD V
- 3 to VDD V
VSS – 0.3 to VDD + 0.3 V
- 65 to + 150
°
C
- 25 to + 70
°
C
260
°
C
Operating Temperature Range
Lead Temperature (10 secs soldering)
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