VSC7123 Vitesse Semiconductor Corp., VSC7123 Datasheet
VSC7123
Available stocks
Related parts for VSC7123
VSC7123 Summary of contents
Page 1
... The VSC7123 is a full-speed Fibre Channel and Gigabit Ethernet Transceiver with industry-standard pinouts. The VSC7123 accepts 10-bit 8B/10B encoded transmit data, latches it on the rising edge of REFCLK and serializes the data onto the TX PECL differential outputs at a baud rate which is 10 times the REFCLK frequency ...
Page 2
... F capacitor to control the Loop Filter. Serializer The VSC7123 accepts TTL input data as a parallel 10-bit character on the T(0:9) bus, which is latched into the input register on the rising edge of REFCLK. This data is serialized and transmitted on the TX PECL differential outputs at a baud rate that is 10 times the frequency of the REFCLK, with bit T0 transmitted first. ...
Page 3
... R(0:9). The parallel data will be captured by the adjoining protocol logic on the rising edges of RCLK and RCLKN. If serial input data is not present or does not meet the required baud rate, the VSC7123 will continue to produce a recovered clock, allowing downstream logic functionality to continue. Under these circumstances, the RCLK/RCLKN output frequency differ from its expected frequency by no more than +1% ...
Page 4
... Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com VITESSE SEMICONDUCTOR CORPORATION K28.5 TChar TChar TChar TChar: 10-bit transmission character Figure 3: Detection Receiving Two Consecutive K28.5+TChar Transmission Words Clock Stretching K28.5 TChar TChar Internet: www.vitesse.com Data Sheet VSC7123 TChar K28.5 TChar TChar: 10-bit transmission character G52212-0, Rev 4.3 03/25/01 ...
Page 5
... A JTAG Access Port is provided to assist in board-level testing. Through this port, most pins can be accessed or controlled and all TTL outputs can be tri-stated. A full description of the JTAG functions on this device is available in “VSC7123/VSC7133 JTAG Access Port Functionality.” G52212-0, Rev 4.3 © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 03/25//01 Tel: (800) VITESSE • ...
Page 6
... Transmitter Output Jitter Allocation — — Internet: www.vitesse.com Data Sheet VSC7123 Data Valid Units Conditions Measured between the valid data ns level of T(0:9) to the 1.4V point of REFCLK. ns 20% to 80%, 50 load -2. Bit clocks ...
Page 7
... Data Sheet VSC7123 RCLK RCLKN Data Valid R(0:9) Table 3: Receive AC Characteristics Parameters Description TTL Outputs Valid prior RCLK/RCLKN rise TTL Outputs Valid after T 2 RCLK or RCLKN rise Delay between rising edge of T RCLK to rising edge of 3 RCLKN Period of RCLK and T 4 RCLKN ...
Page 8
... MHz -200 200 ppm — 1.5 ns Internet: www.vitesse.com Data Sheet VSC7123 V IH(MIN) V IL(MAX) Conditions Range over which both transmit and receive reference clocks on any link may be centered. Maximum frequency offset between transmit and receive reference clocks on one link. Measured at 1.5V Between V ...
Page 9
... Data Sheet VSC7123 Figure 7: Parametric Measurement Information Serial Input Rise and Fall Time T R Receiver Input Eye Diagram Jitter Tolerance Mask Serial Output Load Z = 75W 0 G52212-0, Rev 4.3 © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 03/25//01 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com ...
Page 10
... VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com VITESSE SEMICONDUCTOR CORPORATION Figure 8: Input Structures INPUT INPUT 9.3K OUTPUT Internet: www.vitesse.com Data Sheet VSC7123 V DDD GND High-Speed Input (RX+/RX ...
Page 11
... Data Sheet VSC7123 DC Characteristics (over recommended operating conditions) Parameters Description V Output HIGH voltage (TTL Output LOW voltage (TTL Input HIGH voltage (TTL Input LOW voltage (TTL Input HIGH current (TTL Input LOW current (TTL output differential peak- ...
Page 12
... ESD Ratings Proper ESD procedures should be used when handling this product. The VSC7123 is rated to the following ESD voltages based on the human body and charge device models: 1. All pins are rated at or above 1000V (charge device model). ...
Page 13
... VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 03/25//01 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com VITESSE SEMICONDUCTOR CORPORATION Figure 9: Pin Diagram (Top View VSC7123 Description Internet: www.vitesse.com 10-Bit Transceiver for Fibre Channel and Gigabit Ethernet 51 49 TDI ...
Page 14
... VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com VITESSE SEMICONDUCTOR CORPORATION Description th of the RX+/- data stream. Each rising transition of for normal operation. SSD Internet: www.vitesse.com Data Sheet VSC7123 DDD G52212-0, Rev 4.3 03/25/01 ...
Page 15
... Data Sheet VSC7123 Package Information: 64-pin PQFP TYP 0.30 RAD. TYP. 0.20 RAD. TYP. G52212-0, Rev 4.3 © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 03/25//01 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com VITESSE ...
Page 16
... Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com VITESSE SEMICONDUCTOR CORPORATION 0.09/0.20 0. NOTES: Drawing not to scale. All units in mm unless otherwise noted. Internet: www.vitesse.com Data Sheet VSC7123 Item 10 mm Tolerance A 1.20 MAX A1 0.10 ±0.05 A2 1.00 ±0.05 E 0.22 ±0.05 F 12.00 BASIC G 10.00 BASIC H 12.00 BASIC I 10 ...
Page 17
... VSC7123 Package Thermal Considerations The VSC7123 is packaged in a 14mm, thermally-enhanced PQFP with an internal heat spreader a 10 mm, thermally enhanced PQFP and a 10mm cavity-down, exposed pad TQFP. These packages use industry-standard EIAJ footprints, but have been enhanced to improve thermal dissipation. The construction of the packages is shown in Figure 10 ...
Page 18
... Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com VITESSE SEMICONDUCTOR CORPORATION VSC7123 xx Package QN: 64-Pin, 14x14mm PQFP QU: 64-Pin, 10x10mm PQFP RD: 64-Pin, 10x10mm TQFP Figure 11: Package Marking Information VSC7123QU Package Suffix ####AAAAA Lot Tracking Code ( characters) VITESSE Internet: www.vitesse.com Data Sheet VSC7123 G52212-0, Rev 4.3 03/25/01 ...