PHILIPS OQ2535HP

INTEGRATED CIRCUITS
DATA SHEET
OQ2535HP
SDH/SONET STM16/OC48
multiplexer
Product specification
Supersedes data of 1997 Nov 27
File under Integrated Circuits, IC19
1999 Oct 04
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
OQ2535HP
FEATURES
GENERAL DESCRIPTION
• Normal and loop (test) modes
The OQ2535HP is a 32-channel multiplexer intended for
use in STM16/OC48 applications. It combines data from a
total of 32 × 78 Mbits/s input channels onto a single
2.5 Gbits/s output channel. It features 3.3 V TTL data
inputs and a 5 V TTL clock output at the low speed
interface, and CML compatible inputs and outputs at the
high speed interface.
• 3.3 V TTL compatible data inputs
• Differential Current-Mode Logic (CML) clock and data
outputs
• 5 V TTL clock output (low speed interface)
• High input sensitivity (100 mV for the high speed clock
input)
• Boundary Scan Test (BST) at low speed interface, in
accordance with “IEEE Std 1149.1-1990”
• Low power dissipation (typically 1.65 W).
ORDERING INFORMATION
PACKAGE
TYPE
NUMBER
OQ2535HP
NAME
DESCRIPTION
VERSION
HLQFP100
plastic heat-dissipating low profile quad flat package; 100 leads;
body 14 × 14 × 1.4 mm
SOT470-1
BLOCK DIAGRAM
handbook, full pagewidth
78
D0 Mbits/s
to
D31
ENL
(1)
4×
8 : 1 MUX
32
TRST
TMS
TCK
TDI
TDO
CDIV
4 : 1 MUX
82
62
65
OQ2535HP
SYNCHRONIZATION
58
2
5
3
7
6
66
68
69
2.5 GHz
DIVIDE BY 8
71
DIVIDE BY 4
72
74
BAND GAP
REFERENCE 1
61
38
REFC1
REFC2
10
BGCAP1
75
BAND GAP
REFERENCE 2
COUT
COUTQ
DLOOP
DLOOPQ
CLOOP
CLOOPQ
12, 39,
87, 88
5
4
31
BGCAP2 VCC(T) VDD
VEE
VCC GND
16
Fig.1 Block diagram.
2
CIN
CINQ
DIOA
DIOC
(2)
14, 37,
63, 85, 86
78
(1) See Chapter “Pinning” for D0 to D31 pin numbers.
(2) Pins 1, 4, 8, 9, 11, 15, 17, 21, 25, 36, 40, 56, 64, 67, 70, 73, 76, 77, 79, 80, 81, 84, 89, 92 to 98 and 100.
1999 Oct 04
DOUTQ
622 MHz
78 MHz
13
DOUT
clock
59
BST LOGIC
SYNSEL2
91
83
load
pulse
SYNSEL1
4
90
2.5 Gbits/s
622 Mbits/s
60
MGK351
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
OQ2535HP
PINNING
SYMBOL
PIN
TYPE(1)
DESCRIPTION
GND
1
S
ground
TRS
2
I
test reset input for BST mode (active LOW)
TCK
3
I
test clock input for BST mode
GND
4
S
ground
TMS
5
I
test mode select input for BST mode
TDO
6
O
serial test data output for BST mode
TDI
7
I
serial test data input for BST mode
GND
8
S
ground
GND
9
S
ground
BGCAP1
10
A
pin for connecting external band gap decoupling capacitor (4 × 8 : 1 MUX)
GND
11
S
ground
VEE
12
S
supply voltage (−4.5 V)
CDIV
13
O
78 MHz clock output
VDD
14
S
supply voltage (+3.3 V)
GND
15
S
ground
VCC(T)
16
S
supply voltage for TTL buffer (+5.0 V); not connected internally to VCC
GND
17
S
ground
D31
18
I
78 Mbits/s data input channel for D31
D27
19
I
78 Mbits/s data input channel for D27
D23
20
I
78 Mbits/s data input channel for D23
GND
21
S
ground
D19
22
I
78 Mbits/s data input channel for D19
D15
23
I
78 Mbits/s data input channel for D15
D11
24
I
78 Mbits/s data input channel for D11
GND
25
S
ground
D7
26
I
78 Mbits/s data input channel for D7
D3
27
I
78 Mbits/s data input channel for D3
D30
28
I
78 Mbits/s data input channel for D30
D26
29
I
78 Mbits/s data input channel for D26
D22
30
I
78 Mbits/s data input channel for D22
D18
31
I
78 Mbits/s data input channel for D18
D14
32
I
78 Mbits/s data input channel for D14
D10
33
I
78 Mbits/s data input channel for D10
D6
34
I
78 Mbits/s data input channel for D6
D2
35
I
78 Mbits/s data input channel for D2
GND
36
S
ground
VDD
37
S
supply voltage (+3.3 V)
REFC2
38
A
pin for connecting external reference decoupling capacitor (3.3 V CMOS
reference)
VEE
39
S
supply voltage (−4.5 V)
1999 Oct 04
3
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
OQ2535HP
PIN
TYPE(1)
GND
40
S
ground
D29
41
I
78 Mbits/s data input channel for D29
D25
42
I
78 Mbits/s data input channel for D25
D21
43
I
78 Mbits/s data input channel for D21
D17
44
I
78 Mbits/s data input channel for D17
D13
45
I
78 Mbits/s data input channel for D13
D9
46
I
78 Mbits/s data input channel for D9
D5
47
I
78 Mbits/s data input channel for D5
D1
48
I
78 Mbits/s data input channel for D1
D28
49
I
78 Mbits/s data input channel for D28
D24
50
I
78 Mbits/s data input channel for D24
D20
51
I
78 Mbits/s data input channel for D20
D16
52
I
78 Mbits/s data input channel for D16
D12
53
I
78 Mbits/s data input channel for D12
D8
54
I
78 Mbits/s data input channel for D8
D4
55
I
78 Mbits/s data input channel for D4
GND
56
S
ground
D0
57
I
78 Mbits/s data input channel for D0
SYNSEL2
58
I
selection input 2 for synchronization pulse timing
SYNSEL1
59
I
selection input 1 for synchronization pulse timing
SYMBOL
DESCRIPTION
VCC
60
S
supply voltage (+5.0 V)
REFC1
61
A
pin for connecting external reference decoupling capacitor (for standard
TTL reference)
ENL
62
I
loop mode enable (active LOW)
VDD
63
S
supply voltage (+3.3 V)
GND
64
S
ground
DLOOP
65
O
data output to demultiplexer IC OQ2536 (loop mode)
DLOOPQ
66
O
inverted data output to demultiplexer IC OQ2536 (loop mode)
GND
67
S
ground
CLOOP
68
O
clock output to demultiplexer IC OQ2536 (loop mode)
CLOOPQ
69
O
inverted clock output to demultiplexer IC OQ2536 (loop mode)
GND
70
S
ground
CIN
71
I
clock input from VCO IC
CINQ
72
I
inverted clock input from VCO IC
GND
73
S
ground
DIOA
74
A
anode of temperature diode array
DIOC
75
A
cathode of temperature diode array
GND
76
S
ground
GND
77
S
ground
BGCAP2
78
A
pin for connecting external band gap decoupling capacitor (4 : 1 MUX)
GND
79
S
ground
1999 Oct 04
4
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
OQ2535HP
PIN
TYPE(1)
GND
80
S
GND
81
S
ground
COUT
82
O
clock output to laser driver IC
COUTQ
83
O
inverted clock output to laser driver IC
SYMBOL
DESCRIPTION
ground
GND
84
S
ground
VDD
85
S
supply voltage (+3.3 V)
VDD
86
S
supply voltage (+3.3 V)
VEE
87
S
supply voltage (−4.5 V)
VEE
88
S
supply voltage (−4.5 V)
GND
89
S
ground
DOUT
90
O
data output to laser driver IC
DOUTQ
91
O
inverted data output to laser driver IC
GND
92
S
ground
GND
93
S
ground
GND
94
S
ground
GND
95
S
ground
GND
96
S
ground
GND
97
S
ground
GND
98
S
ground
i.c.
99
−
internally connected, to be left open-circuit
GND
100
S
ground
Note
1. Pin type abbreviations: O = Output, I = Input, S = power Supply, A = Analog function.
1999 Oct 04
5
Philips Semiconductors
Product specification
76 GND
77 GND
78 BGCAP2
79 GND
81 GND
80 GND
82 COUT
83 COUTQ
84 GND
86 VDD
85 VDD
OQ2535HP
88 VEE
87 VEE
89 GND
90 DOUT
92 GND
93 GND
94 GND
95 GND
96 GND
97 GND
98 GND
99 i.c.
100 GND
handbook, full pagewidth
91 DOUTQ
SDH/SONET STM16/OC48 multiplexer
GND
1
75 DIOC
TRST
2
74 DIOA
TCK
3
73 GND
GND
4
72 CINQ
TMS
5
71 CIN
TDO
6
70 GND
TDI
7
69 CLOOPQ
GND
8
68 CLOOP
GND
9
67 GND
BGCAP1 10
66 DLOOPQ
GND 11
65 DLOOP
VEE 12
64 GND
OQ2535HP
CDIV 13
VDD 14
63 VDD
62 ENL
GND 15
61 REFC1
VCC(T) 16
GND 17
60 VCC
59 SYNSEL1
D31 18
58 SYNSEL2
D27 19
57 D0
D23 20
56 GND
Fig.2 Pin configuration.
1999 Oct 04
6
D24 50
D28 49
D1 48
D5 47
D9 46
D13 45
D17 44
D21 43
D25 42
D29 41
GND 40
VEE 39
REFC2 38
VDD 37
GND 36
D2 35
D6 34
D10 33
51 D20
D14 32
52 D16
D18 31
D11 24
GND 25
D22 30
53 D12
D26 29
D15 23
D30 28
54 D8
D3 27
55 D4
D19 22
D7 26
GND 21
MGK350
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
FUNCTIONAL DESCRIPTION
The outputs CLOOP, CLOOPQ, DLOOP and DLOOPQ
are terminated internally with 100 Ω resistors to GND and
are specifically designed to drive 50 Ω printed-circuit
board transmission lines.
The OQ2535HP is a 32-channel multiplexer intended for
use in STM16/OC48 applications. It multiplexes
32 × 78 Mbits/s input channels onto a single 2.5 Gbits/s
output channel.
The 2.5 GHz clock connected to CIN and CINQ is
terminated internally with 50 Ω to GND.
The multiplexing is performed in two stages. The 32 input
channels are fed into four 8 : 1 multiplexers to generate
four 622 Mbits/s channels. These four channels are then
combined into a single 2.5 Gbits/s data stream.
Power supply connections
The power supply pins need to be individually decoupled
using chip capacitors mounted as close as possible to the
IC. If multiple decoupling capacitors are used for a single
supply node, they must be placed close to each other to
avoid RF resonance.
The ENL control input is used for switching between
normal and loop modes. When loop mode is enabled,
(ENL = LOW), the output signal is switched to DLOOP and
DLOOPQ (these outputs could be connected to the
DLOOP and DLOOPQ inputs on the OQ2536HP
demultiplexer to form part of a test loop).
To minimize low frequency switching noise in the vicinity of
the OQ2535HP, all power supply lines should be filtered
once by an LC-circuit with a low cut-off frequency (as
shown in the application diagram, Fig.6). VCC(T) needs to
be filtered separately via an LC-circuit because of the high
switching currents present at the CDIV TTL output. As this
current contains only 78 MHz harmonics, filtering can be
achieved with relatively small values of L and C.
The 2.5 GHz clock at CIN and CINQ is used as the system
reference. It is divided down to 78 MHz and made
available on the CDIV TTL output for timing the input data
(D0 to D31).
Low bit rate stage: 4 × 8 : 1 MUX
Ground connection
This part of the circuit consists of four 8-bit shift registers,
each acting as an 8 : 1 multiplexer, together with a
synchronization block.
The ground connection on the printed-circuit board needs
to be a large copper area fill connected to a common
ground plane with low inductance.
The 32 data input signals are loaded into the shift registers
before being shifted out on a 622 MHz clock.
RF connections
The load pulse for the shift registers is generated in the
synchronization block. The inputs SYNSEL1 and
SYNSEL2 can be used to adjust the phase of the load
pulse with respect to the input data (see Table 3) to
synchronize the data and clock signals.
A coupled stripline or microstrip with an odd mode
characteristic impedance of 50 Ω (nominal value) should
be used for the RF connections on the printed-circuit
board. The connections should be kept as short as
possible. This applies to the CML differential line pairs CIN
and CINQ, DOUT and DOUTQ, COUT and COUTQ,
DLOOP and DLOOPQ, and CLOOP and CLOOPQ. In
addition, the following lines should not vary in length by
more than 5 mm:
High bit rate stage: 4 : 1 MUX
The four 622 Mbits/s data outputs from the low bit rate
stage are combined into a single 2.5 Gbits/s data stream
in two stages: two 2 : 1 multiplexers are used to generate
two 1244 Mbits/s data streams; these signals are then fed
into a third 2 : 1 multiplexer to generate the 2.5 Gbits/s
data stream.
• CIN and CINQ
• DOUT, DOUTQ, COUT and COUTQ
• DLOOP, DLOOPQ, CLOOP and CLOOPQ.
The 2.5 Gbits/s serial data stream is passed either to the
DOUT and DOUTQ outputs (normal mode), or to the
DLOOP and DLOOPQ outputs (loop mode). The output
sequence is D31 (MSB) to D0 (LSB). Data and clock
output buffers are terminated internally with 100 Ω
resistors to GND and are capable of driving 50 Ω loads.
The unused output buffers are switched off to help
minimize power dissipation.
1999 Oct 04
OQ2535HP
Interface to transmit logic
The 78 Mbits/s interface lines, CDIV and D0 to D31,
should not vary in length by more than 20 mm.
The parasitic capacitance of these lines should be as
small as possible.
7
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
ESD protection
OQ2535HP
1 –1
1
R th h-a ≤  -------- – -------------- – R th j-c – R th c-h
 R th R th j-a
All pads are protected by ESD protection diodes with the
exception of the high frequency outputs DOUT, DOUTQ,
DLOOP, DLOOPQ, COUT, COUTQ, CLOOP and
CLOOPQ and clock inputs CIN and CINQ.
(4)
where:
Rth h-a = thermal resistance from heatsink to ambient
Rth c-h = thermal resistance from case to heatsink
Cooling
Rth j-c = thermal resistance from junction to case,
see Chapter “Thermal characteristics”.
In many cases it is necessary to mount a special cooling
device on the package. The thermal resistance from
junction to case, Rth j-c and from junction to ambient, Rth j-a,
are given in Chapter “Thermal characteristics”. Since the
heat-slug in the package is connected to the die, the
cooling device should be electrically isolated.
If for instance Rth c-h = 0.5 K/W and Rth j-a = 33 K/W then:
1
1 –1
R th h-a ≤  ----------- – ------ – 3.1
(5)
 12.5 33
≤ 17.0 K/W
To calculate if a heatsink is necessary, the maximum
allowed total thermal resistance Rth is calculated as:
T j – T amb
(1)
R th = ----------------------P tot
Built in temperature sensor
Tj = junction temperature
Three series-connected diodes have been integrated for
measuring junction temperature. The diode array,
accessed by means of the DIOA (anode) and DIOC
(cathode) pins, has a temperature dependency of
approximately −6 mV/°C. With a diode current of 1 mA, the
voltage will be somewhere in the range of 1.7 to 2.5 V,
depending on temperature.
Tamb = ambient temperature.
Boundary Scan Test (BST) interface
where:
Rth = total thermal resistance from junction to ambient in
the application
As long as Rth is greater than Rth j-a of the OQ2536HP
including environmental conditions such as air flow and
board layout, no heatsink is necessary.
For example if Tj = 120 °C, Tamb = 55 °C and
Ptot = 1.65 W, then:
( 120 – 55 )
R th = --------------------------- = 39.4 K/W
(2)
1.65
Boundary scan test logic has been implemented for all
digital inputs and outputs on the low frequency interface, in
accordance with “IEEE Std 1149.1-1990”. All scan tests
other than SAMPLE mode are available. The boundary
scan test logic consists of a TAP controller, a BYPASS
register, a 2-bit instruction register, a 32-bit identification
register and a 36-bit boundary scan register (the last two
are combined). The architecture of the TAP controller and
the BYPASS register is in accordance with IEEE
recommendations. The four command modes, selected by
means of the instruction register, are: EXTEST (00),
PRELOAD (01), IDCODE (10) and BYPASS (11). All
boundary scan test inputs, TDI, TMS, TCK and TRST,
have internal pull-up resistors. The maximum test clock
frequency at TCK is 12 MHz.
which is more than the worst case Rth j-a = 33 K/W, so no
heatsink is necessary.
Another example; if for safety reasons Tj should stay as
low as 110 °C, while Tamb = 85 °C and Ptot = 2 W, then:
( 110 – 85 )
R th = --------------------------- = 12.5 K/W
(3)
2.0
In this case extra cooling is needed. The thermal
resistance of the heatsink is calculated as follows:
Table 1
BST identifier code
VERSION
OQ
2535 (BINARY)
PHILIPS SEMICONDUCTORS
LSB(1)
0001
01
00 1001 1110 0111
0000 0010 101
1
Note
1. LSB is shifted out first on the TDO pin.
1999 Oct 04
8
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
Table 2
BST bit order
BIT NUMBER
SYMBOL
PIN
35 (MSB)
CDIV
13
34
ENL
62
33
SYNSEL2
58
32
SYNSEL1
59
31
D31
18
30
D30
28
29
D29
41
28
D28
49
27
D27
19
26
D26
29
25
D25
42
24
D24
50
23
D23
20
22
D22
30
21
D21
43
20
D20
51
19
D19
22
18
D18
31
17
D17
44
16
D16
52
15
D15
23
14
D14
32
13
D13
45
12
D12
53
11
D11
24
10
D10
33
9
D9
46
8
D8
54
7
D7
26
6
D6
34
5
D5
47
4
D4
55
3
D3
27
2
D2
35
1
D1
48
0 (LSB)(1)
D0
57
Note
1. LSB is shifted out first on the TDO pin.
1999 Oct 04
9
OQ2535HP
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
OQ2535HP
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
VCC, VCC(T)
supply voltage
−0.5
+6.0
V
VEE
supply voltage
−6.0
+0.5
V
VDD
supply voltage
−0.5
+5.0
V
Vn
DC voltage
pins 18 to 20, 22 to 24, 26 to 35, 41 to 55 and 57
−0.5
VDD + 0.5
V
pins 2, 3, 5, 7, 38, 61 and 62
−0.5
VCC + 0.5
V
pins 65, 66, 68, 69, 71, 72, 82, 83, 90 and 91
−1.0
+0.5
V
pins 10 and 78
VEE − 0.5
0.5
V
pins 74 and 75
VEE − 0.5
VCC + 0.5
V
pins 6 and 13
−
50
mA
pins 74 and 75
−
10
mA
In
DC current
Ptot
total power dissipation
−
2.35
W
Tj
junction temperature
−
120
°C
Tstg
storage temperature
−65
+150
°C
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
Rth j-c
thermal resistance from junction to
case
Rth j-a
thermal resistance from junction to
ambient
CONDITIONS
VALUE
UNIT
2.6
K/W
airflow = 0 ft/min
33
K/W
airflow = 100 ft/min
28
K/W
airflow = 200 ft/min
25
K/W
airflow = 400 ft/min
22
K/W
airflow = 600 ft/min
20
K/W
see note 1
Note
1. The thermal resistance from junction to ambient is strongly depending on the board design and airflow. The values
given in the table are typical values and are measured on a single sided test board with dimensions of
76 × 114 × 1.6 mm. Better values can be obtained when mounted on multilayer boards with large ground planes.
1999 Oct 04
10
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
OQ2535HP
DC CHARACTERISTICS
All typical values are at Tamb = 25 °C and at typical supply voltages; minimum and maximum values are valid over the
entire ambient temperature range and supply voltage range.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
General
VCC, VCC(T)
supply voltage
VEE
VDD
note 1
4.75
5.0
5.25
V
supply voltage
−4.75
−4.5
−4.25
V
supply voltage
3.14
3.3
3.47
V
ICC
supply current
−
2.3
4
mA
ICC(T)
supply current
−
20
40
mA
IEE
supply current
−
265
400
mA
IDD
supply current
−
20
28
mA
Ptot
total power dissipation
−
1.65
2.35
W
Tj
junction temperature
−
−
120
°C
Tamb
ambient temperature
−40
−
+85
°C
TTL 3.3 V inputs: D0 to D31; note 2
VIL
LOW-level input voltage
−
−
0.8
V
VIH
HIGH-level input voltage
2.0
−
−
V
IIL
LOW-level input current
−65
−
0
µA
IIH
HIGH-level input current
0
−
110
µA
TTL inputs: ENL, SYNSEL1, SYNSEL2, TDI, TCK, TMS and TRST
VIL
LOW-level input voltage
−
−
0.8
V
VIH
HIGH-level input voltage
2.0
−
−
V
IIL
LOW-level input current
note 3
−100
−
0
µA
IIH
HIGH-level input current
note 3
0
−
210
µA
50 Ω
measurement
system
100
250
500
mV
−25
−
+25
mV
−600
−
+250
mV
for DC signal
−
50
−
Ω
CML clock inputs: CIN and CINQ; note 4
Vi(p-p)
input voltage (peak-to-peak value)
VIO
permitted input offset voltage
VI, VIQ
input voltages
Zi
single ended input impedance
TTL outputs: CDIV and TDO; note 5
VOL
LOW-level output voltage
IOL = 4 mA
−
0.3
0.5
V
VOH
HIGH-level output voltage
IOH = −400 µA
2.4
4.0
−
V
IOZ
output current in high-impedance state
−
−
1
µA
CML outputs in normal mode: COUT, COUTQ, DOUT and DOUTQ; note 4
Vo(p-p)
output voltage (peak-to-peak value)
VOO
output offset voltage
VO, VOQ
output voltages
Zo
output impedance
1999 Oct 04
outputs
terminated
externally with
50 Ω resistors
230
300
500
mV
−25
0
+25
mV
−600
−
0
mV
for DC signal
−
100
−
Ω
11
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
SYMBOL
PARAMETER
OQ2535HP
CONDITIONS
MIN.
TYP.
MAX.
UNIT
CML outputs in loop mode: CLOOP, CLOOPQ, DLOOP and DLOOPQ; note 4
Vo(p-p)
output voltage (peak-to-peak value)
VOO
output offset voltage
VO, VOQ
output voltages
Zo
output impedance
outputs
terminated
externally with
50 Ω
230
300
500
mV
−25
0
+25
mV
−600
−
0
mV
for DC signal
−
100
−
Ω
II(d) = 1 mA
−
2.1
−
V
Temperature diode array
∆VDIOA-DIOC
diode voltage range; note 6
Notes
1. VCC and VCC(T) require the same power supply voltage. However, a filter is needed to isolate VCC(T) because of the
high peak currents that occur at 78 MHz.
2. The output sequence is D31 (MSB) to D0 (LSB).
3. Only for inputs ENL, SYNSEL1 and SYNSEL2. TDI, TMS, TCK and TRST are connected to VCC through 90 kΩ
resistors.
4. See Fig.3 for symbol definitions.
5. TDO is switched to high impedance state if BST is inactive.
6. The temperature diode array can be used to measure the temperature of the die. The temperature dependency of
this voltage is approximately −6 mV/K.
handbook, full pagewidth
CML INPUT
CML OUTPUT
VI(max)
GND
GND
VO(max)
VIQH
VOQH
VOH
VIH
Vi(p-p)
VIQL
VIL
Vo(p-p)
VOQL
VOL
VIO
VO(min)
VI(min)
Fig.3 Logic level symbol definitions for CML.
1999 Oct 04
12
VOO
MGK144
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
OQ2535HP
TIMING
Typical values at Tamb = 25 °C and at typical supply voltages; minimum and maximum values are valid over the entire
ambient temperature range and supply voltage range.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
TTL input timing
fclk(CIN) = 2.488 GHz
−
77.76
−
tr(CDIV), tf(CDIV) CDIV rise/fall time
capacitive load of 15 pF
−
−
2600
ps
tsu
input data set-up time
note 1
1200
−
−
ps
th
input data hold time
note 1
2600
−
−
ps
fclk(CIN) = 2.488 GHz
−
2.488
−
GHz
fclk(CDIV)
low speed output clock frequency
MHz
CML output timing; note 2
fclk(COUT)
output clock frequency
tCDV
clock edge to data valid time
−
−
250
ps
tDI
data invalid time
−
−
120
ps
tr(CML), tf(CML)
CML output rise/fall time
−
−
150
ps
δCOUT
output clock duty factor
45
50
55
%
Notes
1. The set-up and hold times given are valid for SYNSEL1 = SYNSEL2 = HIGH. Different SYNSEL1, SYNSEL2
combinations will produce different set-up and hold times (see Table 3).
2. All CML outputs must be terminated externally with 50 Ω to GND. The specified timing characteristics are applicable
in both normal and loop modes.
Table 3
Timing relationship between the clock edge and the data valid region (minimum values)
SYNSEL2
SYNSEL1
tsu
th
UNIT
HIGH
HIGH
1200
2600
ps
HIGH
LOW
2800
1000
ps
LOW
HIGH
1700
2100
ps
LOW
LOW
3300
500
ps
1999 Oct 04
13
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
OQ2535HP
Tcy(CDIV)
handbook, full pagewidth
tf
tr
2.0 V
1.5 V
CDIV
0.8 V
1.5 V
D0 to D31
th
valid data
MGK352
tsu
Fig.4 TTL input timing.
handbook, full pagewidth
tf
Tcy(COUT)
tr
+100 mV
COUT − COUTQ,
CLOOP − CLOOPQ
0V
−100 mV
+100 mV
DOUT − DOUTQ,
DLOOP − DLOOPQ
−100 mV
MGK353
tCDV
tDI
Fig.5 CML output timing.
1999 Oct 04
14
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
OQ2535HP
APPLICATION INFORMATION
system reference
handbook, full pagewidth
DATA
INTERFACE
PHASE
DETECTOR
D0 to D31
CDIV
13
D0 to D31
10
VEE
BGCAP1
10 nF
VEE
78
ENL
microcontroller
61
BGCAP2
10 nF
PLL
LOOP
FILTER
REFC1
68 nF
62
38
REFC2
68 nF
TDI
TCK
BOUNDARY SCAN
TEST EQUIPMENT
59
7
58
3
TMS
TRST
TDO
5
71
2
72
16
OQ2536 DLOOPQ
DMUX
CLOOP
CLOOPQ
DLOOP
DLOOPQ
CLOOP
CLOOPQ
65
(1)
66
VCO
2.488 GHz
CINQ
ferrite
bead
VCC
VCC(T)
100
nF ferrite
bead
1 µF
100
nF
1 µF
ferrite
bead
VDD
100
nF
69
(3)
90
D
DOUTQ
DQ
COUT
CL
100
nF
GND
COUTQ
CLQ
OQ2545
LASER DRIVER
LA
LAQ
LASER DIODE
MGK354
Fig.6 Application diagram.
15
1 µF
ferrite
bead
VEE
83
82
91
DOUT
1999 Oct 04
CIN
68
(2)
(1) VDD pins 14, 37, 63, 85 and 86 should be
connected together, and to the filter network.
(2) VEE pins 12, 39, 87 and 88 should be connected
together, and to the filter network.
(3) All GND pins (pins 1, 4, 8, 9, 11, 15, 17, 21, 25, 36,
40, 56, 64, 67, 70, 73, 76, 77, 79, 80, 81, 84, 89,
92 to 98 and 100) must be connected directly to
the printed-circuit board ground plane.
GND
or
VCC
SYNSEL2
OQ2535
6
60
DLOOP
SYNSEL1
1 µF
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
OQ2535HP
PACKAGE OUTLINE
HLQFP100: plastic heat-dissipating low profile quad flat package;
100 leads; body 14 x 14 x 1.4 mm
SOT470-1
c
y
X
A
51
75
50 Z E
76
e
J
E HE
A A2
w M
(A 3)
A1
bp
θ
Lp
pin 1 index
L
100
detail X
26
1
25
ZD
e
v M A
w M
bp
D
B
HD
v M B
0
5
10 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1)
E (1)
e
mm
1.6
0.20
0.05
1.5
1.3
0.25
0.28
0.16
0.18
0.12
14.1
13.9
14.1
13.9
0.5
HD
HE
J(2)
16.25 16.25 10.15
15.75 15.75 9.15
L
Lp
v
w
y
1.0
0.75
0.45
0.2
0.12
0.1
Z D (1) Z E (1)
θ
1.15
0.85
7
0o
1.15
0.85
Notes
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
2. Heatsink intrusion 0.0127 maximum.
OUTLINE
VERSION
REFERENCES
IEC
JEDEC
EIAJ
ISSUE DATE
97-01-13
SOT470-1
1999 Oct 04
EUROPEAN
PROJECTION
16
o
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
• Use a double-wave soldering method comprising a
turbulent wave with high upward pressure followed by a
smooth laminar wave.
SOLDERING
Introduction to soldering surface mount packages
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our “Data Handbook IC26; Integrated Circuit Packages”
(document order number 9398 652 90011).
• For packages with leads on two sides and a pitch (e):
– larger than or equal to 1.27 mm, the footprint
longitudinal axis is preferred to be parallel to the
transport direction of the printed-circuit board;
There is no soldering method that is ideal for all surface
mount IC packages. Wave soldering is not always suitable
for surface mount ICs, or for printed-circuit boards with
high population densities. In these situations reflow
soldering is often used.
– smaller than 1.27 mm, the footprint longitudinal axis
must be parallel to the transport direction of the
printed-circuit board.
The footprint must incorporate solder thieves at the
downstream end.
• For packages with leads on four sides, the footprint must
be placed at a 45° angle to the transport direction of the
printed-circuit board. The footprint must incorporate
solder thieves downstream and at the side corners.
Reflow soldering
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Several methods exist for reflowing; for example,
infrared/convection heating in a conveyor type oven.
Throughput times (preheating, soldering and cooling) vary
between 100 and 200 seconds depending on heating
method.
Typical dwell time is 4 seconds at 250 °C.
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
Typical reflow peak temperatures range from
215 to 250 °C. The top-surface temperature of the
packages should preferable be kept below 230 °C.
Manual soldering
Fix the component by first soldering two
diagonally-opposite end leads. Use a low voltage (24 V or
less) soldering iron applied to the flat part of the lead.
Contact time must be limited to 10 seconds at up to
300 °C.
Wave soldering
Conventional single wave soldering is not recommended
for surface mount devices (SMDs) or printed-circuit boards
with a high component density, as solder bridging and
non-wetting can present major problems.
When using a dedicated tool, all other leads can be
soldered in one operation within 2 to 5 seconds between
270 and 320 °C.
To overcome these problems the double-wave soldering
method was specifically developed.
If wave soldering is used the following conditions must be
observed for optimal results:
1999 Oct 04
OQ2535HP
17
Philips Semiconductors
Product specification
SDH/SONET STM16/OC48 multiplexer
OQ2535HP
Suitability of surface mount IC packages for wave and reflow soldering methods
SOLDERING METHOD
PACKAGE
REFLOW(1)
WAVE
BGA, LFBGA, SQFP, TFBGA
not suitable
suitable(2)
HBCC, HLQFP, HSQFP, HSOP, HTQFP, HTSSOP, SMS
not
PLCC(3), SO, SOJ
suitable
LQFP, QFP, TQFP
SSOP, TSSOP, VSO
suitable
suitable
suitable
not
recommended(3)(4)
suitable
not
recommended(5)
suitable
Notes
1. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum
temperature (with respect to time) and body size of the package, there is a risk that internal or external package
cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the
Drypack information in the “Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods”.
2. These packages are not suitable for wave soldering as a solder joint between the printed-circuit board and heatsink
(at bottom version) can not be achieved, and as solder may stick to the heatsink (on top version).
3. If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave direction.
The package footprint must incorporate solder thieves downstream and at the side corners.
4. Wave soldering is only suitable for LQFP, TQFP and QFP packages with a pitch (e) equal to or larger than 0.8 mm;
it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm.
5. Wave soldering is only suitable for SSOP and TSSOP packages with a pitch (e) equal to or larger than 0.65 mm; it is
definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm.
DEFINITIONS
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
1999 Oct 04
18
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Internet: http://www.semiconductors.philips.com
SCA 68
© Philips Electronics N.V. 1999
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
Printed in The Netherlands
465012/50/02/pp20
Date of release: 1999
Oct 04
Document order number:
9397 750 03901