CH1817D Cermetek Microelectronics, CH1817D Datasheet
CH1817D
Specifications of CH1817D
Related parts for CH1817D
CH1817D Summary of contents
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... RI Output: Active low Opto coupler, 30KΩ pull-up Square wave: 15-68Hz (Typ. 20Hz) Sensitivity: 38Vrms across Tip & Ring 2006 Cermetek Microelectronics, Inc. CH1817 FEATURES • Low Profile, Ultra small size: 1.0” x 1.0” x 0.35” They are compatible • Complete DAA function • ...
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... Attenuation 0dBm Input Impedance 150KΩ Figure 2. Typical CH1817 Application. 2006 Cermetek Microelectronics, Inc. TRANSMIT SIGNAL The outgoing analog signal to be transmitted through the phone line should be applied to the XMIT pin (with respect to GND) and must be AC coupled as shown in Figure 2. For the CH1817-D a XMIT (+) and XMIT (-) pins provide a differential input. attenuates the transmit signal by 9.5dB, 0dB for the – ...
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... Input a differential signal with respect to XMIT(-) for the CH1817-D versions only. 9 GND I Ground. Must be connected to signal ground. Note: Noise should be less than 25mV peak-to-peak. 2006 Cermetek Microelectronics, Inc. Table 1. CH1817 Family Pin Description. Function Page 3 CH1817 Family of Low Profile DAA Modules ...
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... TIP and RING traces should be as short as possible and should be oriented to prevent direct or induced coupling with other signals on the host circuit card. 2006 Cermetek Microelectronics, Inc. 5. The DAA Module is a sensitive subsystem that should be component. supply to the DAA. The device handles signals in the millivolt range ...
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... Inductors L1 and L2 are ferrite cylinders and provide attenuation to high frequencies from system external to the CH1817. The required values must be empirically determined for each product design 2006 Cermetek Microelectronics, Inc. for non UL Figure 4. Low Power Ring Detection. This must also They ...
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... AC voltage between Tip and Ring Sensitivity Ringer Equivalency Type “A” Number (REN) Hook Switch Control Current Loop current Weight Figure 6. Pin Connections. 2006 Cermetek Microelectronics, Inc. CH1817 DAA Electrical Specifications. V =+5VDC ± 5%, T =0° to 55° Conditions Page 6 CH1817 Family of Low Profile DAA Modules Min ...
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... UL1459 Listed, XMIT attenuated by 0.0dBm, Differential input CH1817L UL1459 Listed, XMIT attenuated by 9.5dBm, Single ended input CH1817LM UL1459 Listed, XMIT attenuated by 6.5dBm, Single ended input CH1817DM UL1459 Listed, XMIT attenuated by 6.5dBm, Differential input CH1817ET* UL1459 Listed, XMIT attenuated by 9.5dBm, Single ended input CH1817LET* UL1459 Listed, XMIT attenuated by 9 ...
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... Therefore, for FCC and IC Approved or Approvable devices, the user assumes all risk for maintaining compliance to registration. 1390 BORREGAS AVNUE | SUNNYVALE CA 94089 CERMETEK WEB SITE: 2006 Cermetek Microelectronics, Inc. | LOCAL: 408-752-5000 | TOLL FREE: 1-800-882-6271 http://www.cermetek.com sales@cermetek ...