CY7B9234-270JXC Cypress Semiconductor Corp, CY7B9234-270JXC Datasheet - Page 18

• Manufacturer Part Number: CY7B9234-270JXC
• Description: IC TRANSMITTER HOTLINK 28-PLCC
• Manufacturer: Cypress Semiconductor Corp
• Series: HOTlink™r
• Type: Transmitter and Receiverr

Specifications of CY7B9234-270JXC

• Package / Case: 28-PLCC
• Protocol: Fibre Channel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Product: PHY
• Supply Voltage (min): 4.5 V
• Supply Current: 0.085 A
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Number Of Channels: 1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Drivers/receivers: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 428-2905-5; CY7B9234-270JXC

while allowing OUTC± to continue to function normally (OUTC is
typically used as a diagnostic feedback and cannot be disabled).
This separation of function allows various system configurations
without undue load on the control function or data channel logic.
Transmitter Serial Data Characteristics
The CY7B9234 SMPTE HOTLink Transmitter serial output
conforms to the requirements of the Fibre Channel specification.
The serial data output is controlled by an internal Phase-Locked
Loop that multiplies the frequency of CKW by ten (10) to maintain
the proper bit clock frequency. The jitter characteristics (including
both PLL and logic components) are shown below:
Note
Document #: 38-02014 Rev. *B
23. SMPTE-259M-CD interfaces may require external line drivers and adaptive equalization circuits to meet all SMPTE signalling specifications. Substitute alternative I/O
Deterministic Jitter (D
sured while sending a continuous K28.5 (C5.0).
Random Jitter (R
while sending a continuous K28.7 (C7.0).
circuits at Xs and at [A, B] and [C, D, E].
Control
Config
Status
Control
Config
Status
Data
Data
&
&
j
) < 175 ps (peak-peak). Typically measured
j
) < 35 ps (peak-peak). Typically mea-
25
24
23
19
18
17
16
15
14
13
12
11
10
21
4
5
8
26
25
4
23
3
5
7
19
18
17
16
15
14
13
12
11
10
22
MODE
FOTO
BISTEN
ENN
ENA
RP
SC/D
D0
D1
D2
D3
D4
D5
D6
D7
SVS
MODE
BISTEN
SO
A/B
RF
RDY
SC/D
D0
D1
D2
D3
D4
D5
D6
D7
RVS
CKW
REFCLK
CKR
(Db)
(Dc)
(Dd)
(De)
(Di)
(Df)
(Dg)
(Dh)
(Qb)
(Qc)
(Qd)
(Qe)
(Qi)
(Qf)
(Qg)
(Qh)
Figure 6. SMPTE HOTLink Connection Diagram
(Dj)
(Qj)
Transmitter
(Da)
(Qa)
CY7B9234
GND
6
CY7B9334
Receiver
8
OUTA+
OUTA–
OUTB+
OUTB–
OUTC+
OUTC–
GND
VCC
9
20
4
VCC
6
21
9 22
IB+
IB–
IA+
IA–
20
24
27
26
28
28
27
1
3
2
2
1
.01UF
Unused Output Left
.01UF
Power Dissipation
Open to Minimize
Tx PECL Load
C
D
E
A
B
E
C
D
270
270
Transmitter Test Mode Description
The CY7B9234 Transmitter offers two types of test mode
operation, BIST mode and Test mode. In a normal system appli-
cation, the Built-In Self-Test (BIST) mode can be used to check
the functionality of the Transmitter, the Receiver, and the link
connecting them. This mode is available with minimal impact on
user system logic, and can be used as part of the normal system
diagnostics. Typical connections and timing are shown in Figure
7 on page 19.
Transmission
.01UF
Termination
Tx PECL Load
82
82
Line
PECL Load
Fiber-optic
.01UF
130
130
82
82
.01UF
RL/2
RL/2
A
B
649
130
130
[23]
270
270
Signal Det.
Optional
270
1500
.01UF
.01UF
SIG
RX+
RX–
TX+
TX–
Fiber
Fiber
VCC
GND
VCC
GND
TX
RX
Fiber-optic
Twisted Pair
Twisted Pair
Fiber-optic
CY7B9234
CY7B9334
Coax or
Coax or
Tx
Rx
Page 18 of 36
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