SC9200 SILAN | Alldatasheet
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HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.08.03 Http: www.silan.com.cn Page 1 of 10 DTMF GENERATOR WITH MICROPROCESSOR INTERFACE DIP8 DIP14 SOP8 SOP14
DESCRIPTION
The SC9200 tone generators are designed forµ C interfaces. They can be instructed by aµ C to generate 16 dual tones and 8 single tones from the DTMF pin. The SC9200A/AS provides a serial mode whereas the SC9200B/BS contains a s electable serial/parallel mode interface for various applications
FEATURES
- Operating voltage: 2.0V~5.5V * Serial mode for the SC9200A/AS * Serial/parallel mode for the SC9200B/BS * Low standby current * Low total harmonic distortion * 3.58MHz crystal or ceramic resonator
APPLICATIONS
- Security systems * Home automation * Remote control through telephone lines * Communication syste m, etc.
ORDERING INFORMATION
Part No. Package SC9200A DIP83002.54 SC9200B DIP143002.54 SC9200AS SOP82251.27 SC9200BS SOP142251.27 BLOCK DIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.08.03 Http: www.silan.com.cn Page 2 of 10 ABSOLUTE MAXIMUM RATING Characteristic Symbol Ratings Unit Supply Voltage VSS 0.3~6 V Input Voltage VIN VSS0.3~VDD+0.3 V Storage Temperature Tstg 50~125 °C Operating Temperature Topr 20~75 °C
ELECTRICAL CHARACTERISTICS
Min. Typ. Max. Unit Serial 1.8 Operating Voltage VDD Parallel 2.0 5.5 V 2.5V 240 2500 Operating Current IDD 5.0V /PS =VDD, D0~D3=VSS, CE =VSS, No load 950 3000 µ A Low Input Voltage VIL VSS 0.2VDD V High Input Voltage VIH 0.8VDD VDD V 2.5V 1 Standby Current ISTB 5.0V /PS , CE =VDD, No load 2 µ A 2.5V 120 180 270 Pullhigh Resistance RP 5.0V VOL=0V 45 68 100 kΩ DTMF Output Delay Time (Parallel Mode) tDE 5V tUP+6 tUP+8 ms DTMF Output DC Level V TDC 2V~5.5V DTMF Output 0.45VDD 0.75VDD V DTMF Sink Current ITOL 2.5V V DT MF=0.5V 0.1 mA DTMF Output AC Level VTAC 2.5V Row group, R L=5kΩ 0.12 0.15 0.18 Vrms Column Preemphasis ACR 2.5V Row group=0dB 1 2 3 dB DTMF Output Load RL 2.5V t HD≤ 23dB 5 kΩ Tone Signal Distortion tHD 2.5V R L=5kΩ 30 23 dB Clock Input Rate (Serial Mode) Oscillator Starting Time (W hen CE is low) tUP 5.0V The time from CE falling edge to normal oscillator operation 10 ms System Frequency fOSC Crystal=3.5795MHz 3.5759 3.5759 3.5831 MHz
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.08.03 Http: www.silan.com.cn Page 3 of 10 PIN CONFIGURATION PIN DESCRIPTION Pin NO. DIP8 SOP8 DIP14 SOP14 Pin Name Description 1 1 CE Chip enable, active low. 2 2 X2 3 3 X1 The system oscillator consists of an inverter, a bias resistor, and the required load capacitor on chip. The oscillator function can be implemented by Connect a standard 3.579545MHz crystal to the X1 and X2 terminals. 4 4 VSS Negative power supply. 5 NC No connection. 6~9 D0~D3 Data inputs for the parallel mode. When the IC is operating in the serial mode, the data input terminals (D0~D3) are included with a pullhigh resistor. When the IC is operating in the parallel mode, these pins become floating. 10 /PS Operation mode selection input /PS =” H” : Parallel mode /PS =” L” : Serial mode 5 11 CLK Data synchronous clock input for the serial mode. When the IC is operating in the parallel mode, the input terminal (CLK) is included with a pullhigh resistor. When the IC is operating in the serial mode, this pin becomes floating. 6 12 DATA Data input terminal for the serial mode. When the IC is operating in the parallel mode, the input terminal (DATA) is included with a pullhigh resistor. When the IC is operating in the serial mode, this pin becomes floating. 7 13 DTMF Output terminal of the DTMF signal. 8 14 VDD Positive power supply, 2.0V~5.5V for normal operation.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.08.03 Http: www.silan.com.cn Page 4 of 10 FUNCTIONAL DESCRIPTION The SC9200 are DTMF generators for µ C interfaces. They are controlled by aµ C in the serial mode. 1. Serial mode (SC9200) The SC9200 employ a data input, a 5bit code, and a synchronous clock to transmit a DTMF signal. The relationship between the digital codes and the tone output frequency is shown in Table 1 as for the control timing diagram, refer to Figure 1. Table 1: Digits vs. input data vs. tone output frequency (serial mode) Digit D4 D3 D2 D1 D0 Tone Output Frequency (Hz) 1 0 0 0 0 1 697+1209 2 0 0 0 1 0 697+1336 3 0 0 0 1 1 697+1477 4 0 0 1 0 0 770+1209 5 0 0 1 0 1 770+1336 6 0 0 1 1 0 770+1477 7 0 0 1 1 1 852+1209 8 0 1 0 0 0 852+1336 9 0 1 0 0 1 852+1477 0 0 1 0 1 0 941+1336 * 0 1 0 1 1 941+1209 # 0 1 1 0 0 941+1477 A 0 1 1 0 1 697+1633 B 0 1 1 1 0 770+1633 C 0 1 1 1 1 852+1633 D 0 0 0 0 0 941+1633 1 0 0 0 0 697 1 0 0 0 1 770 1 0 0 1 0 852 1 0 0 1 1 941 1 0 1 0 0 1209 1 0 1 0 1 1336 1 0 1 1 0 1477 1 0 1 1 1 1633 DTMF OFF 1 1 1 1 1 *Notes: The codes not listed in Table 1 are not used D4 is MSB.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.08.03 Http: www.silan.com.cn Page 5 of 10 Figure 1 2. Parallel mode (SC9200B/BS) The SC9200B/BS provides four data inputs D0~D3 to generate their corresponding DTMF signals. The /PS has to be connected high to select the parallel operation mode. Then the input data codes should be determined. Finally, the CE is connected low to transmit the DTMF signal from the DTMF pin. The TDE time (about 6ms) will be delayed from the CE falling edge to the DTMF signal output. The relationship between the digital codes and the tone output frequency is illustrated in Table 2. As for the control timing diagram, see Fiigure 2. When the system is operating in the parallel mode, D0~D3 are all in the floating state. Thus, these data input pins should not float. Table 2: Digits vs. input data vs. tone output frequency (parallel mode) Digit D3 D2 D1 D0 Tone Output Frequency 1 0 0 0 1 697+1209 2 0 0 1 0 697+1336 3 0 0 1 1 697+1477 4 0 1 0 0 770+1209 5 0 1 0 1 770+1336 6 0 1 1 0 770+1477 7 0 1 1 1 852+1209 8 1 0 0 0 852+1336 9 1 0 0 1 852+1477 0 1 0 1 0 941+1336 * 1 0 1 1 941+1209 # 1 1 0 0 941+1477 A 1 1 0 1 697+1633 B 1 1 1 0 770+1633 C 1 1 1 1 852+1633 D 0 0 0 0 941+1633
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.08.03 Http: www.silan.com.cn Page 6 of 10 Figure 1 APPLICATION CIRCUIT Serial mode Serial/parallel mode
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.08.03 Http: www.silan.com.cn Page 7 of 10 PACKAGE OUTLINE DIP83002.54 UNIT: mm 6.35 2.54 1.52 9.40 4.36MAX3.00MIN 7.62 15 degree ± 0.25 0.89 +0.35 0.30 +0.4 0.3 0.5MIN 0.25 ±0.05 0.46 ± 0.30 DIP143002.54 UNIT: mm
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.08.03 Http: www.silan.com.cn Page 8 of 10 PACKAGE OUTLINE (Continued) SOP82251.27 UNIT: mm 6.0±0.4 3.9±0.3 5.72±0.3 1.55±0.20 0.3̚1.27 SOP142251.27 UNIT: mm
HANGZHOU SILAN MICROELECTRONICS CO.,LTD REV:2.0 2004.08.03 Http: www.silan.com.cn Page 9 of 10 HANDLING MOS DEVICES: Electrostatic charges can exist in many things. All of our MOS devices are internally protected against electrostatic discharge but they can be damaged if the following precautions are not taken:
- Persons at a work bench should be earthed via a wrist strap.
- Equipment cases should be earthed.
- All tools used during assembly, including soldering tools and solder baths, must be earthed.
- MOS devices should be packed for dispatch in antistatic/conductive containers.