CY28353OXC-2

CY28353-2
..........................Document #: 38-07372 Rev. *B Page 4 of 9
.... Data bytes from slave / Acknowledge
.... Data Byte N from slave – 8 bits
.... NOT Acknowledge
... Stop
Table 3. Byte Read and Byte Write Protocol
Byte Write Protocol Byte Read Protocol
Bit Description Bit Description
1 Start 1 Start
8:2 Slave address – 7 bits 8:2 Slave address – 7 bits
9 Write 9 Write
10 Acknowledge from slave 10 Acknowledge from slave
18:11 Command Code – 8 bits 18:11 Command Code – 8 bits
19 Acknowledge from slave 19 Acknowledge from slave
27:20 Data byte – 8 bits 20 Repeated start
28 Acknowledge from slave 27:21 Slave address – 7 bits
29 Stop 28 Read
29 Acknowledge from slave
37:30 Data from slave – 8 bits
38 NOT Acknowledge
39 Stop
Byte0: Output Register (1 = Enable, 0 = Disable)
Bit @Pup Pin# Description
7 1 2, 1 CLKT0, CLKC0
6 1 4, 5 CLKT1, CLKC1
51–Reserved
41–Reserved
3 1 13, 14 CLKT2, CLKC2
2 1 26, 27 CLKT5, CLKC5
11–Reserved
0 1 24, 25 CLKT4, CLKC4
Byte1: Output Register (1 = Enable, 0 = Disable)
Bit @Pup Pin# Description
71–Reserved
6 1 17, 16 CLKT3, CLKC3
50–Reserved
40–Reserved
30–Reserved
20–Reserved
10–Reserved
00–Reserved
Table 2. Block Read and Block Write Protocol (continued)
Block Write Protocol Block Read Protocol
Bit Description Bit Description
CY28353-2
..........................Document #: 38-07372 Rev. *B Page 5 of 9
Maximum Ratings
[3]
Input Voltage Relative to V
SS
:...............................V
SS
– 0.3V
Input Voltage Relative to V
DDQ
or AV
DD
: ............. V
DD
+ 0.3V
Storage Temperature:................................. –65°C to +150°C
Operating Temperature:....................................0°C to +85°C
Maximum Power Supply:................................................3.5V
This device contains circuitry to protect the inputs against
damage due to high static voltages or electric field; however,
precautions should be taken to avoid application of any
voltage higher than the maximum rated voltages to this circuit.
For proper operation, V
IN
and V
OUT
should be constrained to
the range:
V
SS
< (V
IN
or V
OUT
) < V
DD
.
Unused inputs must always be tied to an appropriate logic
voltage level (either V
SS
or V
DD
).
Byte2: Test Register 3
Bit @Pup Pin# Description
7 1 0 = PLL leakage test, 1 = disable test
6 1 Reserved
5 1 Reserved
4 1 Reserved
3 1 Reserved
2 1 Reserved
1 1 Reserved
0 1 Reserved
DC Parameters V
DDA
= V
DDQ
= 2.5V + 5%, T
A
= 0C to +70C
[4]
Parameter Description Condition Min. Typ. Max. Unit
VIL Input Low Voltage SDATA, SCLK 1.0 V
VIH Input High Voltage 2.2 V
VID Differential Input
Voltage
[5]
CLKINT, FBINT 0.35 V
DDQ
+ 0.6 V
VIX Differential Input
Crossing Voltage
[6]
CLKINT, FBINT (V
DDQ
/2) – 0.2 V
DDQ
/2 (V
DDQ
/2) + 0.2 V
IIN Input Current V
IN
= 0V or V
IN
= V
DDQ
,
CLKINT, FBINT
–10 10 A
IOL Output Low Current V
DDQ
= 2.375V, V
OUT
= 1.2V 26 35 mA
IOH Output High Current V
DDQ
= 2.375V, V
OUT
=1V –18 –32 mA
VOL Output Low Voltage V
DDQ
= 2.375V, I
OL
= 12 mA 0.6 V
VOH Output High Voltage V
DDQ
= 2.375V, I
OH
= –12 mA 1.7 V
VOUT Output Voltage Swing
[7]
1.1 V
DDQ
– 0.4 V
VOC Output Crossing
Voltage
[8]
(V
DDQ
/2) – 0.2 V
DDQ
/2 (V
DDQ
/2) + 0.2 V
IOZ High-impedance Output
Current
V
O
= GND or V
O
= V
DDQ
–10 10 µA
IDDQ Dynamic Supply
Current
[9]
All V
DDQ
and V
DDI
, F
O
= 170
MHz
235 300 mA
IDSTAT Static Supply Current 1mA
IDD PLL Supply Current V
DDA
only 9 12 mA
Cin Input Pin Capacitance 4 6 pF
CY28353-2
..........................Document #: 38-07372 Rev. *B Page 6 of 9
AC Parameters V
DD
= V
DDQ
= 2.5V ± 5%, T
A
= 0°C to +70°C
[10,11]
Parameter Description Condition Min. Typ. Max. Unit
fCLK Operating Clock Frequency AV
DD
, V
DD
= 2.5V ± 0.2V 60 170 MHz
tDC Input Clock Duty Cycle 40 60 %
tlock Maximum PLL lock Time 100 s
Tr / Tf Output Clocks Slew Rate 20% to 80% of V
OD
1 2.5V/ns
tpZL, tpZH Output Enable Time
[12]
(all outputs) 3 ns
tpLZ, tpHZ Output Disable Time
[12]
(all outputs) 3 ns
tCCJ Cycle to Cycle Jitter f > 66 MHz –100 100 ps
tjit(h-per) Half-period jitter
[14]
f > 66 MHz –100 100 ps
tPLH
Low-to-High Propagation Delay,
CLKINT to CLKT[0:5]
1.5 3.5 6 ns
tPHL
High-to-Low Propagation Delay,
CLKINT to CLKT[0:5]
1.5 3.5 6 ns
tSKEW Any Output to Any Output Skew
[13]
100 ps
tPHASE Phase Error
[13]
–150 150 ps
tPHASEJ Phase Error Jitter f > 66MHz –50 50 ps
Notes:
3. Multiple Supplies: The voltage on any input or I/O pin cannot exceed the power pin during power-up. Power supply srquencing is NOT required.
4. Unused inputs must be held HIGH or LOW to prevent them from floating.
5. Differential input signal voltage specifies the differential voltage |VTR – VCP| required for switching, where VTR is the true input level and VCP is the comple-
mentary input level.
6. Differential cross-point input voltage is expected to track VDDQ and is the voltage at which the differential signals must be crossing.
7. For load conditions see Figure 7.
8. The value of VOC is expected to be |VTR + VCP|/2. In case of each clock directly terminated by a 120 resistor. See Figure 7.
9. All outputs switching loaded with 16 pF in 60 environment. See Figure 7.
10.Parameters are guaranteed by design and characterization. Not 100% tested in production.
11.PLL is capable of meeting the specified parameters while supporting SSC synthesizers with modulation frequency between 30 kHz and 33.3 kHz with a down
spread of –0.5%.
12.Refers to transition of non-inverting output.

CY28353OXC-2

Mfr. #:
Manufacturer:
Silicon Labs
Description:
Clock Buffer Differential clock Buffer/Driver
Lifecycle:
New from this manufacturer.
Delivery:
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