CY7B951-SXCT

CY7B951
Document Number: 38-02010 Rev. *A Page 7 of 10
AC Test Loads and Waveforms
Notes
7. Cypress uses constant current (ATE) load configurations and forcing functions. This figure is for reference only.
8. f
B
is calculated as 1/(f
REF
X8).
9. t
LOCK
is the time needed for transitioning from lock to REFCLK X8 to lock to data.
10. The ECL switching threshold is the differential zero crossing (i.e., the place where + and – signals cross).
(a) TTL AC Test Load
[7]
(b) ECL AC Test Load
[7]
(c) TTL Input Test Waveform (d) ECL Input Test Waveform
Switching Characteristics Over the Operating Range
Parameter Description Min. Max. Unit
f
REF
Reference Frequency MODE = LOW 6.41 6.55 MHz
MODE = HIGH 19.24 19.64 MHz
f
B
Bit Time
[8]
MODE = LOW 19.5 19.1 ns
MODE = HIGH 6.50 6.40 ns
t
PE
Receiver Static Phase Error
[6]
MODE = LOW 100 ps
MODE = HIGH 200 ps
t
ODC
Output Duty Cycle (TCLK±, RCLK±)
[6]
48 52 %
t
RF
Output Rise/Fall Time
[6]
0.4 1.2 ns
t
LOCK
PLL Lock Time (RIN transition density 25%)
[9]
100 µs
t
RPWH
REFCLK Pulse Width HIGH 10 ns
t
RPWL
REFCLK Pulse Width HIGH 10 ns
t
DV
Data Valid 3 ns
t
DH
Data Hold 1 ns
t
PD
Propagation Delay (RIN to ROUT, TSER to TOUT)
[10]
10 ns
CY7B951
Document Number: 38-02010 Rev. *A Page 8 of 10
Switching Waveforms for the CY7B951 SONET/SDH Serial Transceiver
Ordering Information
Speed
(ns)
Ordering Code
Package
Name
Package Type
Operating
Range
25 CY7B951-SC S24.3 24-Lead (300-Mil) Molded SOIC Commercial
25 CY7B951-SXC SZ24.3 24-Lead (300-Mil) Pb-Free Molded SOIC Commercial
25 CY7B951-SI S24.3 24-Lead (300-Mil) Molded SOIC Industrial
25 CY7B951-SXI SZ24.3 24-Lead (300-Mil) Pb-Free Molded SOIC Industrial
CY7B951
Document Number: 38-02010 Rev. *A Page 9 of 10
© Cypress Semiconductor Corporation, 2006. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use
of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be
used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its
products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress
products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
SUNI is a trademark of PMC-Sierra, Incorporated. All products and company names mentioned in this document may be the
trademarks of their respective holders.
Package Diagram
Figure 3. 24-Lead (300-Mil) SOIC S24.3/SZ24.3
PIN 1 ID
SEATING PLANE
0.597[15.163]
0.615[15.621]
112
13 24
*
*
*
0.291[7.391]
0.300[7.620]
0.394[10.007]
0.419[10.642]
0.050[1.270]
TYP.
0.092[2.336]
0.105[2.667]
0.004[0.101]
0.0118[0.299]
0.0091[0.231]
0.0125[0.317]
0.015[0.381]
0.050[1.270]
0.013[0.330]
0.019[0.482]
0.026[0.660]
0.032[0.812]
0.004[0.101]
PART #
S24.3 STANDARD PKG.
SZ24.3 LEAD FREE PKG.
MIN.
MAX.
NOTE :
1. JEDEC STD REF MO-119
2. BODY LENGTH DIMENSION DOES NOT INCLUDE MOLD PROTRUSION/END FLASH,BUT
MOLD PROTRUSION/END FLASH SHALL NOT EXCEED 0.010 in (0.254 mm) PER SIDE
3. DIMENSIONS IN INCHES
4. PACKAGE WEIGHT 0.65gms
DOES INCLUDE MOLD MISMATCH AND ARE MEASURED AT THE MOLD PARTING LINE.
51-85025-*C

CY7B951-SXCT

Mfr. #:
Manufacturer:
Cypress Semiconductor
Description:
RF Transceiver SONET SDH ATM OC 1/3 Clk Recovery COM
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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