INTERSIL EL9115

EL9115
®
Data Sheet
September 8, 2005
FN7441.2
Triple Analog Video Delay Line
Features
The EL9115 is a triple analog delay line that allows skew
compensation between any three signals. This part is perfect
for compensating for the skew introduced by a typical CAT-5
cable with differing electrical lengths on each pair.
• 62ns total delay
The EL9115 can be programmed in steps of 2ns up to 62ns
total delay on each channel.
• Up to 122MHz bandwidth
Ordering Information
• 20-pin QFN (5mm x 5mm) package
• 2ns delay step increments
• Operates from ±5V supply
• Low power consumption
• Pb-Free plus anneal available (RoHS compliant)
TAPE &
REEL
PKG. DWG. #
20-Pin QFN
(5mm x 5mm)
-
MDP0046
EL9115IL-T7
20-Pin QFN
(5mm x 5mm)
7”
MDP0046
• Analog beamforming
EL9115IL-T13
20-Pin QFN
(5mm x 5mm)
13”
MDP0046
Pinout
EL9115ILZ
(See Note)
20-Pin QFN
(5mm x 5mm)
(Pb-Free)
-
MDP0046
EL9115ILZ-T7
(See Note)
20-Pin QFN
(5mm x 5mm)
(Pb-Free)
7”
MDP0046
EL9115ILZ-T13
(See Note)
20-Pin QFN
(5mm x 5mm)
(Pb-Free)
13”
MDP0046
Applications
• Skew control for RGB
16 VSPO
17 DELAYB
18 DELAYG
19 DELAYR
EL9115
[20-PIN QFN (5MM X 5MM)]
TOP VIEW
20 X2
VSP 1
15 ROUT
14 GNDO
RIN 2
THERMAL
PAD
GND 3
13 GOUT
VSM 5
11 BOUT
SCLOCK 10
12 VSMO
SDATA 9
GIN 4
NSENABLE 8
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
CENABLE 7
EL9115IL
PACKAGE
BIN 6
PART NUMBER
EXPOSED DIEPLATE SHOULD BE CONNECTED TO -5V
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2004, 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
EL9115
Absolute Maximum Ratings (TA = 25°C)
Supply Voltage (VS+ to VS-) . . . . . . . . . . . . . . . . . . . . . . . . . . . .12V
Maximum Output Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . ±60mA
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +135°C
Ambient Operating Temperature . . . . . . . . . . . . . . . .-40°C to +85°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA
DC Electrical Specifications
PARAMETER
VSA+ = VA+ = +5V, VSA- = VA- = -5V, TA = 25°C, exposed die plate = -5V, unless otherwise specified.
DESCRIPTION
CONDITION
MIN
TYP
MAX
UNIT
V+
Positive Supply Range
+4.5
+5.5
V
V-
Negative Supply Range
-4.5
-5.5
V
G_0
Gain Zero Delay
G_m
X2 = 5V, 150Ω load
1.81
1.89
2.04
Gain Mid Delay
1.66
1.84
2.04
G_f
Gain Full Delay
1.52
1.79
2.04
DG_m0
Difference in Gain, 0 - Mid
-7.5
-2.5
2.5
%
DG_f0
Difference in Gain, 0 - Full
-13.5
-6.0
2.5
%
DG_fm
Difference in Gain, Mid - Full
-10.0
-2.6
4.0
%
VIN
Input Voltage Range
Gain falls to 90% of nominal
-0.7
1.3
V
VOUT
Output Voltage Range
X2 = +5V into 150Ω load
-5
1.6
V
IB
Input Bias Current
1
5
µA
RIN
Input Resistance
10
VOS_0
Output Offset 0 Delay
VOS_M
X2 = +5V, 75 + 75Ω load
MΩ
-200
-150
60
mV
Output Offset full Delay
-200
-140
60
mV
VOS_F
Output Offset mid Delay
-200
-130
60
mV
ZOUT
Output Impedance
4.5
4.8
5.1
Ω
Chip enable = +5V
Chip enable = 0V
1
MΩ
+PSRR
Rejection of Positive Supply
X2 = +5V into 75 + 75Ω load
-38
dB
-PSRR
Rejection of Negative Supply
X2 = +5V into 75 + 75Ω load
-53
dB
ISP
Supply Current (Note 1)
Chip enable = +5V current on VSP
75
87
115
mA
ISM
Supply Current (Note 1)
Chip enable = +5V current in VSM
-10.5
-8.6
-7
mA
ISMO
Supply Current (Note 1)
Chip enable = +5V current in VSMO
-13
-11.6
-10
mA
ISPO
Supply Current (Note 1)
Chip enable = +5V current in VSPO
10
11.8
15.5
∆ISP
Supply Current (Note 1)
Increase in ISP per unit step in delay
0.9
mA
ISP OFF
Supply Current (Note 1)
Chip enable = 0V current in VSP
1.6
mA
IOUT
Output Drive Current
10Ω load, 0.5V drive, X2 = 5V
LHI
Logic High
Switch high threshold
LLO
Logic Low
Switch low threshold
30
mA
1.25
0.8
1.15
1.6
V
V
NOTE:
1. All supply currents measured withe Delay R = 0ns, G = mid delay, B = full delay.
2
FN7441.2
September 8, 2005
EL9115
AC Electrical Specifications
PARAMETER
VSA+ = VA+ = +5V, VSA- = VA- = -5V, TA = 25°C, exposed die plate = -5V, unless otherwise specified.
DESCRIPTION
CONDITION
BW -3dB
3 dB Bandwidth
0ns Delay Time
BW 0.1dB
0.1dB Bandwidth
SR
Slew Rate
TR - TF
MIN
TYP
MAX
UNIT
122
MHz
0ns Delay Time
60
MHz
0ns Delay Time
400
V/µs
Transient Response Time
20% - 80%, for all delays, 1V step
2.5
ns
VOVER
Voltage Overshoot
for any delay, response to 1V step input
Glitch
Switching Glitch
Time for o/p to settle after last s_clock edge
100
THD
Total Harmonic Distortion
1VP-P 10MHz sinewave, offset by +0.2V at
mid delay setting
-50
XT
Hostile Crosstalk
Stimulate G, measure R/B at 1MHz
-80
dB
VN
Output Noise
Gain X2, measured at 75Ω load
2.5
mV rms
dT
Delay Increment
1.75
2
2.25
ns
TMAX
Maximum Delay
55
62
70
ns
DELDT
Delay Diff Between Channels
tPD
Propagation Delay
Measured input to output
TMAX
Max s_clock Frequency
Maximum programming clock speed
T_en_ck
Minimum Separation Between Serial
Enable and Clock .
Check enable low edge can occur after
T_en_ck of previous (igored) clock and up to
before T_en_ck of next (wanted) clock. Clock
edges occurring within T_en_ck of the enable
edge will have ncertain effect.
5
10
ns
-40
1.6
8.5
9.8
10
%
dB
%
11
ns
10
MHz
ns
Pin Descriptions
PIN NUMBER
PIN NAME
PIN DESCRIPTION
1
VSP
+5V for delay circuitry and input amp
2
RIN
Red channel input, ref GND
3
GND
0V for delay circuitry supply
4
GIN
Green channel input, ref GND
5
VSM
-5V for input amp
6
BIN
Blue channel input, ref GND
7
CENABLE
8
NSENABLE
Chip enable logical +5V enables chip
ENABLE for serial input; enable on low
9
SDATA
Data into registers; logic threshold 1.2V
10
SCLOCK
Clock to enter data; logical; data written on negative edge
11
BOUT
Blue channel output, ref GNDO
12
VSMO
-5V for output buffers
13
GOUT
Green channel output, ref GNDO
14
GNDO
0V reference for input and output buffers
15
ROUT
Red channel output, ref GNDO
16
VSPO
+5V for output buffers
17
TESTB
Blue channel phase detector output
18
TESTG
Green channel phase detector output
19
TESTR
20
X2
Thermal Pad
Red channel phase detector output
Sets gain to 2X if input high; X1 otherwise
Must be connected to -5V
3
FN7441.2
September 8, 2005
EL9115
Typical Performance Curves
Delay = 0ns
-3dB@122MHz
Delay = 62ns
-3dB@80MHz
Delay 10, 20, 30, 40 and 50ns
FIGURE 1. GAIN vs FREQUENCY
DELAY TIME (ns)
FIGURE 3. TYPICAL DC OFFSET vs DELAY TIME (X2 = Hi)
DELAY TIME (ns)
FIGURE 5. RISE TIME vs DELAY TIME
4
Delay = 0ns
Delay = 62ns
Delay 10, 20, 30, 40 and 50ns
FIGURE 2. GAIN vs FREQUENCY
DELAY
DELAY TIME (ns)
FIGURE 4. TYPICAL DC OFFSET vs DELAY TIME (X2 = Low)
DELAY TIME (ns)
FIGURE 6. FALL TIME vs DELAY TIME
FN7441.2
September 8, 2005
EL9115
Typical Performance Curves
Vout = 1Vptp
3 Channels
DELAY TIME (ns)
FIGURE 7. DISTORTION vs FREQUENCY
FIGURE 8. POSITVE SUPPLY CURRENT vs DELAY TIME
X2 Hi_62ns Delay
X2 Hi_62ns Delay
X2 Hi_0ns Delay
X2 Low_62ns Delay
X2 Hi_0ns Delay
X2 Low_62ns Delay
X2 Low_0ns Delay
X2 Low_0ns Delay
FIGURE 9. ISUPPLY+ vs VSUPPLY+
JEDEC JESD51-3 LOW EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD
4.5
833mW
0.8
QF
N2
JA =
0
15
0°
C/
W
θ
0.6
0.4
0.2
0
JEDEC JESD51-7 HIGH EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD - QFN EXPOSED
DIEPAD SOLDERED TO PCB PER JESD51-5
4
1
POWER DISSIPATION (W)
POWER DISSIPATION (W)
1.2
FIGURE 10. ISUPPLY- vs VSUPPLY-
3.5 3.125W
3
θ
2.5
JA =
2
QF
N2
40 0
°C
/W
1.5
1
0.5
0
25
75 85 100
50
125
150
AMBIENT TEMPERATURE (°C)
FIGURE 11. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
5
0
0
25
50
75 85 100
125
150
AMBIENT TEMPERATURE (°C)
FIGURE 12. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
FN7441.2
September 8, 2005
19
17
18
16
TESTR
TESTB
TESTG
VSPO
2 R_in
1
VSP
EL9115
+
CENABLE 7
Delay Line
R_out 15
+
4 G_in
+
Delay Line
G_out 13
+
6 B_in
+
Delay Line
B_out 11
+
X2 20
9 SDATA
10 SCLOCK
8 NSENABLE
3
5
C
12
GND
VSM
[botom plate]
VSMO
GND
Control Logic
14
FIGURE 13. EL9115 BLOCK DIAGRAM
Applications Information:
Power Dissipation
EL9115 is a triple analog delay line receiver that allows skew
compensation between any three high frequency signals.
This part compensates for time skew introduced by a typical
CAT-5 cable with differing electrical lengths on each pair.
The EL9115 can be independently programmed via SPI
interface in steps of 2ns up to 62ns total delay on each
channel while achieving over 80MHz bandwidth.
As the delay setting increases additional filter blocks turn on
and insert into the signal path. For each 2ns of delay per
channel Vsp current increases by 0.9mA while Vsm does not
change significantly. Under the extreme settings, the positive
supply current reaches 140mA and the negative supply
current can be 35mA. Operating at +/-5V power supply, the
total power dissipation is:
Figure 13 shows the EL9115 block diagram. The 3 analog
inputs are ground reference single ended signals. After the
signal is received, the delay is introduced by switching filter
blocks into the signal path. Each filter block is an all-pass
filter introducing 2ns delay. In additional to time delay, each
filter block also introduces some low pass filtering. As a
result, the bandwidth of the signal path decrease from
120MHz at 0ns delay setting to 80MHz at the maximum
delay setting as shown in the frequency response curve in
the typical performance curves section.
PD = 5*140mA + 5*35mA = 875mW
In addition to delay, the extra amplifiers in the signal path
also introduce offset voltage. The output offset voltage can
shift by 100mV for X2 high setting and 50mV for X2 low.
In operation, it is best to allocate the most delayed signal
0ns delay then increase the delay on the other channels to
bring them into line. This will result in the lowest power and
distortion solution to balancing delays.
6
θJA required for long term reliable operation can be
calculated. This is done using the equation:
θJA = (Tj - Ta)/PD = 57C/W
Where
Tj is the maximum junction temperature (135°C)
Ta is the maximum ambient temperature (85°C)
For a QFN 20 package in a properly layout PCB heatsinking
copper area, 40C/W θJA thermal resistance can be
achieved. To disperse the heat, the bottom heatspeader
must be soldered to the PCB. Heat flows through the
heatspeader to the circuit board copper then spreads and
convects to air. Thus the PCB copper plane becomes the
headsink (see TB389). This has proven to be a very effective
technique. A separate application note details the 20 pin
QFN PCB design considerations is available.
FN7441.2
September 8, 2005
EL9115
TABLE 1. SERIAL BUS DATA (Continued)
TABLE 1. SERIAL BUS DATA
vwxyz
DELAY
vwxyz
DELAY
00000
0
11001
50
00001
2
11010
52
00010
4
11011
54
00011
6
11100
56
00100
8
11101
58
00101
10
11110
60
00110
12
11111
62
00111
14
01000
16
01001
18
01010
20
01011
22
01100
24
01101
26
01110
28
01111
30
10000
32
10001
34
10010
36
10011
38
10100
40
10101
42
10110
44
10111
46
11000
48
NOTES:
Delay register word = 0abvwxyz
Red register - ab = 01
Green register - ab = 10
Blue register - ab = 11
vwxyz selects delay
Serial Bus Operation
On the first negative clock edge after NSEnable goes low
read input from DATA. This DATA level should be 0 (write
into registers), READ is not supported. Read the next two
data bits on subsequent negative edges and interpret them
as the register to be filled. Reg 01 = R, 02 = G, 03 = B, 00
test use. Read the next five bits of data and send them to
register. At the end of each block of 8 bits, any further data is
treated as being a new word. Data entered is shifted directly
to the final registers as it is clocked in. Initial value of all
registers on power up is 0. It is the user's responsibility to
send complete patterns of 8 clock cycles even if the first bit
is set to 1. If less than 8 bits are sent, data will only be
partially shifted through the registers. The pattern of 8 starts
with NSEnable going low, so it is good practice to frame
each word within an NS enable burst.
NSENABLE
SCLOCK
0
7
A1
A0
D4
D3
D2
D1
D0
a
b
v
w
x
y
z
SDATA
FN7441.2
September 8, 2005
EL9115
Test Pins
Three test pins are provided (Test R, Test G, Test B) during
normal operation the test pins output pulses of current for a
duration of the overlap between the inputs as shown in
Figure 14:
Test_R pulse = Red out (A) wrt Green out (B)
Test_G pulse = Green out
wrt Blue out
Test_B pulse = Blue out
wrt Red out
Averaging the current gives a direct measure of the delay
between the two edges. When A precedes B the current
pulse is +50µA, and the output voltage goes up. When B
precedes A the pulse is –50µA.
For the logic to work correctly A and B must have a period of
overlap whilst they are high. I.e. a delay longer than the
pulse width cannot be measured.
The signals A and B are derived from the video input by
comparing the video signal with a slicing level which is set by
an internal DAC. This enables the delay to be measured
either from the rising edges of sync-like signals encoded on
top of the video or from a dedicated set-up signal. The
outputs can be used to set the correct delays for the signals
received.
FIGURE 14. DELAY DETECTOR
TABLE 2.
The DAC level is set through the serial input by bits 1-4
directed to the test register (00).
Test Mode
Bit zero of the test register is set to 0 for normal operation. If
it is set to 1 then the device is in test mode. In Test Mode the
DAC voltage is directed to the Green channel output whilst
for the Red and Blue channels, the test outputs are now
pulses of current which are generated by looking at the delay
between the input and output of the channel. They thus
enable the delay to be measured.
wxyz
DAC/mV
1000
-400
1001
-350
1010
-300
1011
-250
1100
-200
1101
-150
1110
-100
1111
-50
0000
0
0001
50
0010
100
0011
150
0100
200
0101
250
0110
300
0111
350
NOTES:
Test Register word = 000wxyzt
If t = 1 test mode else normal
wxyz fed to DAC. z is LSB
8
FN7441.2
September 8, 2005
EL9115
QFN Package Outline Drawing
NOTE: The package drawing shown here may not be the latest version. To check the latest revision, please refer to the Intersil website at
<http://www.intersil.com/design/packages/index.asp>
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
9
FN7441.2
September 8, 2005