MOSCHIP MCS7780 free download

File name MCS7780_ap_sch.PDF

1 2 3 4 +3.3V 1 D USBPWR 2 +3.3V +3.3V U2 MCS7780CS Market compatible 10 R6 1.5K C15 0.1uF 12 1 2 3 4 M1 1 C2 0.1uF C3 0.1uF 1 FB2 FERRITE 47pF 2 0.1uF C4 2 CLKO CLKI 26 25 XTAL_0 R4 R5 33R 17 33R +3.3VA C11 C12 47pF 18 DP DM 1 C6 0.1uF VDD C9 0.1uF FB5 FERRITE 2 +3.3VA C17 2.2uF D +3.3VA FB1 FERRITE TX_DIODE TXDIODE_GND 2 1 R7 330R LD2 LED-SMD +3.3V J1 M0 VCC DM DP GND C M1 USBB M0 U1 3 4 5 TXD_DATA 6 +3.3V 7 RXD_SLOW RXD_FAST 7 8 5 R1 0E 8 MODE GND TFDU6102 MCS7780CS TxD RxD SHDN VCC1 VCC2 IR_K 6 1 2 R3 47R C VDA C1 0.1uF C10 4.7uF, 16V FB3 FERRITE XTAL_1 MODE0 +3.3V USBPWR VR1 LD33 VI Vin ADJ Vout VO +3.3VA R9 100K 23 RST_N AGND DGND GNDD No Connect pins : 3, 4, 13, 14, 15, 16, 19, 20, 21, 22, 27 & 28 B C5 0.1uF B 11 24 9 ADJ C16 10uF C7 0.1uF C8 0.1uF R8 330R 1 FB4 FERRITE 2 LD1 Y1 12MHz CLKO Power on LED CLKI C14 27pF C13 27pF A Title Moschip Semiconductor 8-2-685/1/1, Rd.No.12 Banjara Hills Hyderabad - 500 034 http://www.moschip.com Sheet: 1 of 1 4 A Moschip Controlled Document MCS7780 Market Compatible with Vishay IR Size: Letter Number: Designer: MCS7780CS Date: 2-Mar-2004 3 Revision: Time: A Rohit Mathur 20:08:41 1 2

File name Short Form_7780.pdf

MCS7780 USB to IrDa Port Features · Single 3.3V ­ 5.0V operation · Low power · Full compliance with the USB V1.1 specification and IrDa 1.3 · IrDa data rates from 2.4Kbps to 4 Mbps · Uses standard IrDa Transceivers · Microsoft compatible · Internal power-on reset · On-chip oscillator · Compatible to Sigmatel STIr4200 · Available in 28-pin SSOP package Applications · High-speed IrDa Communications · Cell phone interface cable Application Note · AN-7780 Evaluation Board · MCS7780-EVB General Description The MCS7780 controller provides bridging between the Universal Serial Bus (USB) input and an IrDa wireless data communication port. This device contains all the necessary logic to communicate with the host computer via the USB bus. In addition, the MCS7780 contains a 3.3V regulator and operates in bus-powered mode. The MCS7780 has a reduced frequency (12MHz) crystal oscillator. This combination of features allows significant cost savings in system design along with straight forward implementation of IrDa port functionality into PC peripherals using the host's USB port. Ordering Information Commercial Grade MCS7780CS 28-SSOP 0° C to +70° C MosChip Semiconductor 3335 Kifer Rd, Santa Clara, CA 95051 Tel (408) 737-7141 Fax (408) 737-7708 MCS7780 USB to IrDa Port MCS7780 28-Pin SSOP Package TXDIODEG TXDIODE TST1 TST2 RXFAST TXDATA RXSLOW SD/MODE DGND 1 2 3 4 28 TST9 27 TST8 26 XTAL2 25 XTAL1 6 7 8 9 MCS7780CS 5 24 DGND 23 RESET 22 TSTEN 21 TSTD 20 TSTCLK 19 TST7 18 AVDD 17 DP 16 TST6 15 TST5 VDD 10 AGND 11 DM 12 TST3 13 TST4 14 Page 2