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PDF ISL58328 Data sheet ( Hoja de datos )
| Número de pieza | ISL58328 | |
| Descripción | 5V Wide Optical Spectrum Laser Power Monitor IC | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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5V Wide Optical Spectrum Laser Power Monitor IC
ISL58328
The ISL58328 photo sensor IC has a wide optical spectral
sensitivity from 400nm to 1000nm. It is good for multiple light
sources application, such as laser based projectors. ISL58328
has two banks of three sets of gain registers. For a Pico-Projector
application, the two banks of gain resistors can be used to
monitor bias level and peak level of each wavelength. Bank
switching is done by applying a TTL compatible logic signal to HL
pin. The three sets of gain registers can be used to adjust
optical-to-electrical conversion gain for each RED, GREEN, and
BLUE laser or any wavelength in a spectral range for application.
The ISL58328 is a single die device that has a photo detector of
0.7mm diameter in the center of the die. Photo current signal is
amplified through TIA, fine gain amplifier, and output drivers to
convert from current to voltage. The output of ISL58328 can be
configured to be either differential or single-ended. Gain
changing according to each wavelength is done through 3-wire
interface. Registers can be updated in real time while the device
is in operation.
The ISL58328 operates from a single +5.0V supply. It is available
in a space-saving 9 ball glass top BGA package.
Related Literature
• AN1356, “Serial Bus Specification”
• AN1448, “BD/HD-DVD/DVD/CD PMIC”
Features
• High Sensitivity from 400nm to 1000nm with Patented
Technology for Improved Blue Photo Response
• Differential Voltage Output or Single-Ended Output
• Internal Output Reference or External Output Reference
• Single +5V Power Supply
• Serial Interface for Gain Calibration
• Fast Settling Time < 20ns
• Wide Signal Bandwidth > 80MHz
• Wide Signal Gain Dynamic Range > 25dB
• Low Power Consumption
• Low Output Offset < 50mV
• Small 9-Ball Optical Chip Scale Package (OCSP)
(2.2mmx2.2mm)
• SPI 3-wire Serial Interface
Applications
• Optical Power Monitoring
• Laser Based Pico-Projectors or Projection TV
• Laser Auto Power Control for Laser Based Application
• White Balance for LED Based LCos and DLP Pico-Projectors
5.0V
VIDEO
FRONT END
AND
VIDEO
PROCESSOR
LCOS
DRIVER
ITO
DRIVER
OEIC
ISL58328
OPTIC FEEDBACK
3.3V
MCU
2.5V
1.8V
LASER DIODE
DRIVER
DC/DC
LASER
DIODE
1.2V
FIGURE 1. APPLICATION BLOCK DIAGRAM
July 29, 2013
FN6329.2
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas LLC 2010, 2012, 2013. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
1 page  
ISL58328
Sensitivity
PARAMETER
VDD = 5.0V, TA = +25°C unless otherwise specified.
DESCRIPTION
CONDITIONS
MIN TYP MAX
UNIT
Gain00
TIA Lowest Gain
0dB fine gain adjustment, 7FFh
Differential output
350 450 550
mV/µA
Gain01
TIA 2nd Lowest Gain
0dB fine gain adjustment, 7FFh
Differential output
700 890 1110 mV/µA
Gain10
TIA 2nd Highest Gain
0dB fine gain adjustment, 7FFh
Differential output
1400 1790 2170
mV/µA
Gain11
TIA Highest Gain
0dB fine gain adjustment, 7FFh
Differential output
3700 4850 6020
mV/µA
GainFine_MAX Maximum Fine Gain
for both HIGH Gain and LOW Gain channels
Compared to 0dB fine gain setting, 7FFh
19 dB
GainFine_MIN Minimum Fine Gain
for both HIGH Gain and LOW Gain channels
Compared to 0dB fine gain setting, 7FFh
-5.5 dB
Current to Optical conversion: Optical sensitivity is not tested in production. Gain parameters were obtained using input test currents. Following factors
are used to convert current to optical power.
I2O450nm
Current to Optical conversion
(450nm)
Bench data; measured on typical devices
0.27
µA/µW
I2O530nm
Current to Optical conversion
(530nm)
Bench data; measured on typical devices
0.26
µA/µW
I2O640nm
Current to Optical conversion
(640nm)
Bench data; measured on typical devices
0.38
µA/µW
Serial Interface AC Performance
PARAMETER
FSER1
FSER2
DESCRIPTION
SCLK Operating Range
SCLK Operating Range
VDD = 5.0V, TA = +25°C unless otherwise specified.
CONDITIONS
MIN
Deglitch disable(CONTROL[6]=0)
Deglitch enable(CONTROL[6]=1)
tEH
tEL
tERSR
tCDS
tCDH
tSREF
tCC
Duty
tCDD
tEDH
INPUTLEAKAGE
SEN “H” Time
SEN “L” Time
SEN Rising Edge to the First SCLK Rising
Edge
SDIO Set Up Time
SDIO Hold Time
Last SCLK Rising Edge to SEN Falling Edge
SCLK Cycle Time
SCLK “H” Duty Cycle
SDIO Output Delay
SDIO Output Hold Time
Input Leakage for SCLK, SDATA, and SEN
pin
320
40
10
10
20
-10
TYP MAX
50
2
10
10
50
4
2
10
UNIT
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
%
ns
ns
µA
5 FN6329.2
July 29, 2013
5 Page 
ISL58328
TABLE 9. B_L_GAIN (addr = 13h)
REGISTER
DESCRIPTION
blue_l[11:4]
Bits [7:0]
High 8 bits of blue light LOW Gain channel fine gain
control
TABLE 10. RED_GAIN0 (addr = 14h)
REGISTER
DESCRIPTION
red_h[3: 0]
Bits [7:4]
Lower 4 bits of red light HIGH Gain channel fine gain
control
red_l[3: 0]
Bits [3:0]
Lower 4 bits of red light LOW Gain channel fine gain
control
REGISTER
red_h[11:4]
Bits [7:0]
TABLE 11. RED_H_GAIN (addr = 15h)
DESCRIPTION
High 8 bits of red light HIGH Gain channel fine gain
control
TABLE 12. RED_L_GAIN (addr = 16h)
REGISTER
DESCRIPTION
red_l[11:4] High 8 bits of red light LOW Gain channel fine gain control
Bits [7:0]
REGISTER
green_h[3:0]
Bits [7:4]
green_l[3:0]
Bits [3:0]
TABLE 13. GREEN_GAIN0 (addr = 17h)
DESCRIPTION
Lower 4 bits of green light HIGH Gain channel fine gain
control
Lower 4 bits of green light LOW Gain channel fine gain
control
TABLE 14. GREEN_H_GAIN (addr = 18h)
REGISTER
DESCRIPTION
green_h[11:4]
Bits [7:0]
High 8 bits of green light HIGH Gain channel fine gain
control
TABLE 15. GREEN_L_GAIN (addr = 19h)
REGISTER
DESCRIPTION
green_l[11:4]
Bits [7:0]
High 8 bits of green light LOW Gain channel fine gain
control
REGISTER
st_en_red
Bit [7]
st_time_red
Bits [6:4]
st_mag_red
Bits [2:0]
TABLE 16. ST_RED (addr = 1Ah)
DESCRIPTION
Red light slow tail compensation control
1b: enable
0b: disable
(when disable, st_time_red and st_mag_red are reset to
000b)
Red light slow tail compensation time constant control
Red light slow tail compensation magnitude control
REGISTER
st_en_green
Bit [7]
st_time_green
Bits [6:4]
st_mag_green
Bits [2:0]
TABLE 17. ST_GREEN (addr = 1Bh)
DESCRIPTION
Green light slow tail compensation control
1b: enable
0b: disable
(when disabled, st_time_green and st_mag_green
are reset to 000b)
Green light slow tail compensation time constant
control
Green light slow tail compensation magnitude control
REGISTER
tia_l[1:0]
Bits [3:2]
tia_h[1:0]
Bits [1:0]
TABLE 18. TIA_GAIN (addr = 1Ch)
DESCRIPTION
TIA gain selection in HIGH Gain channel application
00b: Lowest gain
01b: 2nd lowest gain
10b: 2nd highest gain
11b: Highest gain
TIA gain selection in LOW Gain channel application
00b: Lowest gain
01b: 2nd lowest gain
10b: 2nd highest gain
11b: Highest gain
REGISTER
st_en_blue
Bit [7]
st_time_blue
Bits [6:4]
st_mag_blue
Bits [2:0]
TABLE 19. ST_BLUE (addr = 1Eh)
DESCRIPTION
Blue light slow tail compensation control
1b: enable
0b: disable
(when disable, st_time_blue and st_mag_blue
are reset to 000b)
Blue light slow tail compensation time constant
control
Blue light slow tail compensation magnitude
control
11 FN6329.2
July 29, 2013
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet ISL58328.PDF ] | |
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