The DSC SAA8122A is a high performance, low power, single-chip Million
Instructions Per Second (MIPS) based signal processor, part of the ImagIC family,
which is dedicated to image processing, compression, formatting and storage. The
DSC SAA8122A is optimized for use with Philips range of CCDs (e.g: FXA1022,
2 Mpixels CCD), V-driver (TDA9991), CDS/PGA/ADC (TDA9952), allowing easy
implementation of a complete system solution and fast development of high
performance consumer digital still cameras.
The SAA8122A is designed as a single-chip device, able to perform all treatments
and connections required for a wide range of Digital Still Cameras. Its embedded
RISC CPU, for which the development environment is available, enables shorter
development and validation cycles, as well as faster feature upgrade. Since one of
the main objectives of the SAA8122A is addressing a wide range of CCD sensors, a
DSP (with advanced embedded algorithm) forcamera signal processing is integrated
with a high level of programmability for pulses generation.
2.Features
The JPEG core is hardware based in order to allow high-speed image data
compression.
c
c
2.1 General
■ Supports a wide range of progressive CCDs (VGA, SVGA, QGA, XGA, EQGA),
■ Performs an advanced RGB to YUV conversion
■ Includes a smart measurement unit to speed up the control loop (focus,auto white
■ Supports a wide range of LCD and TV formats (both NTSC and PAL) with text
■ Includes an embedded JPEG encoder/decoder unit
■ Includes a MIPS PR3001 CPU, running at a frequency in a range from
■ PRISC compatible PI-bus architecture, interrupt, power management, clock and
■ Includes a dedicated video bus supporting SDRAM memory for picture storage
with RGB Bayer filters up to 2 Mpixels
balance, etc.)
insertion features
12 to 28 MHz
reset architectures
Page 2
Philips Semiconductors
■ Interface to ROM, DRAM, SRAM, flash and PC Card [Compact Flash and SSFDC
■ Integrated general purpose peripheral units like a UART, timers, an I2C-bus
■ Includes USB and RS-232C communication interfaces.
2.2 External interfaces
■ Two UART (RS-232) data ports with DMA capabilities (≤187.5 kbit/s) including
■ 32 general purpose, bidirectional I/O interface pins, the first 8 bits may also be
■ Two PWM outputs (8-bit resolution).
2.3 CPU related features
■ 32-bit PR3001 core
■ 1-kbyte data cache and 4-kbyte instruction cache
■ Programmable low-power mode, including wake-up on interrupt
■ Memory management unit [Translation Lookaside Buffer (TLB)]
■ Two built in 24-bit general purpose timers and one 24-bit watchdog timer
■ Real-time clock unit (active in sleep mode)
■ On-chip 8-kbyte SRAM for storing code which needs fast execution
■ Platform software based on real-time pSOS (plug-in Silicon Operating System).
SAA8122A
Digital Still Camera Processor (ImagIC family)
(SmartMedia)]
transceiver, ADC converters, RTC and I/O ports
hardware flow control RxD, TxD, RTS, CTS for modem support
used as interrupt inputs
2.4 DSP features
■ Advanced colour reconstruction
■ Programmable digital filters for noise reduction and contour enhancement
■ 16 programmable measurement windows allowing to perform the measurements
necessary for exposure, white balance and focus adjustment in a DSC system;
available measurement outputs for exposure, white balance and focus control.
2.5 Pulse pattern generator features
■ Programmable through dedicated PC-software, allowing to drive all CCDs
currently present in the market, as well as CDS/AGC/ADC chips: up to
8 × 8 kpixels.
2.6 JPEG
■ Fully ISO10918 compliant
■ Supports Tiff, Exif 2.1, DCF & DPOF
■ Quick compression (4 images/s for a 1.3 Mpixels resolution).
2.7 USB interface
■ Fully compatible with USB.
9397 750 07048
Objective specificationRev. 01 — 20 April 20002 of 26
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9397 750 07048
Objective specificationRev. 01 — 20 April 20004 of 26
A9Pground for BG of video DAC
SYSRSTINA10Isystem reset input/output; active LOW
V
SS(RTC)
A11Pground for RTC
T0_CAP0A12Itimer 0 capture input 0
CNT2A13Itimer 2 count pulse input
CNT1A14Itimer 1 count pulse input
PWM0A15Otimer 0 PWM output
ADC0A16Ianalog input signal 0 for level measurement
ADC3A17Ianalog input signal 3 for level measurement
V
SS(ADC)
A18Pground for ADC
ANPPG1B1OPPG analog signal 1
IO6/IRQ22B4I/OI/O port 0 bit 6 or interrupt request 22
IO3/IRQ19B5I/OI/O port 0 bit 3 or interrupt request 19
LCD_GB6Oanalog green signal
VIDEO_OUT2B7Ovideo output signal 2
V
SSA(ref)
B8Oanalog reference ground
SC_TCKB9Itest clock input for surround scan chains
TCKB10Itest clock input
XTALCCDINB11-oscillator input from a specific CCD crystal
V
DDA(SPLL)
V
SS(PLL)
B12Panalog supply voltage for SPLL
B13Pground for PLL
CNT0B14Itimer 0 count pulse input
V
SSA(ref)(ADC)
B15Oanalog reference ground for ADC
ADC2B16Ianalog input signal 2 for level measurement
V
DDA(ADC)
B17Panalog supply voltage for ADC
IO23B18I/OI/O port 2 bit 7
V
DDA(PPG1)
V
DDA(PPG0)
V
DDA(DLL)
C1Panalog supply voltage for PPG
C2Panalog supply voltage for PPG
C3Panalog supply voltage for DLL of PPG
IO7/IRQ23C4I/OI/O port 0 bit 7 or interrupt request 23
IO4/IRQ20C5I/OI/O port 0 bit 4 or interrupt request 20
LCD_RC6Oanalog red signal
LCD_BC7Oanalog blue signal
V
DDA(OUTPUT1)
V
DDA(BG)
C8Panalog supply voltage for DAC video output 1
C9Panalog supply voltage for BG of video DAC
TMSC10Itest mode select input
XTAL32KINC11-oscillator input from a 32 kHz crystal
XTAL10INC12-oscillator input from a 10 MHz crystal
GATE2C13Itimer 2 gate input
V
DDA(PLL)
C14Panalog supply voltage for PLL
9397 750 07048
Objective specificationRev. 01 — 20 April 20006 of 26
PWM1C15Otimer 1 PWM output
ADC1C16Ianalog input signal 1 for level measurement
IO22C17I/OI/O port 2 bit 6
IO16C18I/OI/O port 2 bit 0
ANPPG7D1OPPG analog signal 7
V
SSA(PPG1)
D2Panalog ground for PPG
DISP_HSYNCD3Odigital horizontal synchronization signal
IO5/IRQ21D4I/OI/O port 0 bit 5 or interrupt request 21
IO0/IRQ16D5I/OI/O port 0 bit 0 or interrupt request 16
V
SSA(LCD)
V
SS(OUTPUT)
D6Panalog ground for display RGB
D7Pground for DAC video output
CREF_BG2D8-band-gap 2
TDOD9Otest data output
TDID10Itest data input
XTAL32KOUTD11-oscillator output from a 32 kHz crystal
XTAL10OUTD12-oscillator output from a 10 MHz crystal
T0_CAP1D13Itimer 0 capture input 1
GATE0D14Itimer 0 gate input
PWM2D15Otimer 2 PWM output
IO17D16I/OI/O port 2 bit 1
IO15D17I/OI/O port 1 bit 7
IO11D18I/OI/O port 1 bit 3
PPG1E1OPPG digital signal 0
PPG2E2OPPG digital signal 1
ANPPG8E3OPPG analog signal 8
V
DDA(PPG0)
E4Panalog supply voltage for PPG
IO2/IRQ18E5I/OI/O port 0 bit 2 or interrupt request 18
V
DDA(LCDR)
V
DDA(LCDB)
E6Panalog supply voltage for DAC component R
E7Panalog supply voltage for DAC component B
VIDEO_OUT1E8Ovideo output signal 1
SYSRSTE9Osystem reset output; active LOW
TRSTE10Itest reset input
V
DDD(RTC)
E11Pdigital supply voltage for RTC
XTALCCDOUTE12-oscillator output from a specific CCD crystal
GATE1E14Itimer 1 gate input
IO18E15I/OI/O port 2 bit 2
IO10E16I/OI/O port 1 bit 2
IO9E17I/OI/O port 1 bit 1
UA_CLKE18IUART external clock
PPG5F1OPPG digital signal 4
PPG6F2OPPG digital signal 5
9397 750 07048
Objective specificationRev. 01 — 20 April 20007 of 26
PPG3F3OPPG digital signal 2
ANPPG5F4OPPG analog signal 5
ANPPG3F5OPPG analog signal 3
V
SS
V
SS
V
DD
V
DD
V
DD
V
DD
V
DD
F6-ground
F7-ground
F8-supply voltage
F9-supply voltage
F10-supply voltage
F11-supply voltage
F12-supply voltage
IO20F13I/OI/O port 2 bit 4
IO19F14I/OI/O port 2 bit 3
IO12F15I/OI/O port 1 bit 4
CTSF16IUART clear to send
RXDF17IUART receive input
TXDF18OUART transmit output
PPG10G1OPPG digital signal 17
PPG12G2OPPG digital control signal 1
PPG8G3OPPG digital signal 8
PPG4G4OPPG digital signal 3
ANPPG6G5OPPG analog signal 6
ANPPG2G6OPPG analog signal 2
V
DD
V
SS
V
SS
V
SS
V
SS
V
DD
G7-supply voltage
G8-ground
G9-ground
G10-ground
G11-ground
G12-supply voltage
IO21G13I/OI/O port 2 bit 5
IO13G14I/OI/O port 1 bit 5
RTSG15OUART request to send
2
SDAG16I/OI
SCLG17I/OI
C-bus data
2
C-bus clock
n.c.G18-not connected
HDHREFH1I/OPPG horizontal synchronization signal
VDVSH2I/OPPG vertical synchronization signal
PPG13H3OPPG digital control signal 2
PPG7H4OPPG digital control signal 6
PPG14H5OPPG digital control signal 3
ANPPG4H6OPPG analog signal 4
V
DD
H7-supply voltage
9397 750 07048
Objective specificationRev. 01 — 20 April 20008 of 26
H12-supply voltage
IO14H13I/OI/O port 1 bit 6
RXVPIH14IUSB
n.c.H15-not connected
RXVMIH16I/OUSB
TXVPOH17OUSB
RXDATAH18IUSB
CCD_IM2J1Idigital image signal 2
CCD_IM3J2Idigital image signal 3
CCD_IM4J3Idigital image signal 4
PPG11J4OPPG digital signal 18
PPG9J5OPPG digital signal 8
V
DD
V
DD
V
SS
V
SS
V
SS
V
SS
V
DD
J6-supply voltage
J7-supply voltage
J8-ground
J9-ground
J10-ground
J11-ground
J12-supply voltage
IO8J13I/OI/O port 1 bit 0
SUSPENDJ14OUSB
TXOEJ15OUSB
D2J16I/OEBIU D2
D3J17I/OEBIU D3
D0J18I/OEBIU D0
CCD_IM10K1Idigital image signal 10
CCD_IM9K2Idigital image signal 9
CCD_IM8K3Idigital image signal 8
CCD_IM1K4Idigital image signal 1
CCD_IM0K5Idigital image signal 0
V
DD
V
DD
V
SS
V
SS
V
SS
V
SS
V
DD
K6-supply voltage
K7-supply voltage
K8-ground
K9-ground
K10-ground
K11-ground
K12-supply voltage
9397 750 07048
Objective specificationRev. 01 — 20 April 20009 of 26
TXVMOK13OUSB
D1K14I/OEBIU D1
D4K15I/OEBIU D4
D6K16I/OEBIU D6
D7K17I/OEBIU D7
D8K18I/OEBIU D8
SD_A[0]L1OSDRAM controller address bus bit 0
SD_A[3]L2OSDRAM controller address bus bit 3
SD_A[2]L3OSDRAM controller address bus bit 2
CCD_IM6L4Idigital image signal 6
CCD_IM7L5Idigital image signal 7
CCD_IM5L6Idigital image signal 5
V
DD
V
SS
V
SS
V
SS
V
SS
V
DD
L7-supply voltage
L8-ground
L9-ground
L10-ground
L11-ground
L12-supply voltage
D5L13I/OEBIU D5
D9L14I/OEBIU D9
D11L15I/OEBIU D11
D14L16I/OEBIU D14
D13L17I/OEBIU D13
D12L18I/OEBIU D12
SD_A[7]M1OSDRAM controller address bus bit 7
SD_A[8]M2OSDRAM controller address bus bit 8
SD_A[9]M3OSDRAM controller address bus bit 9
SD_A[4]M4OSDRAM controller address bus bit 4
SD_A[1]M5OSDRAM controller address bus bit 1
CCD_IM11M6Idigital image signal 11
V
DD
V
SS
V
SS
V
SS
V
SS
V
DD
M7-supply voltage
M8-ground
M9-ground
M10-ground
M11-ground
M12-supply voltage
D10M13I/OEBIU D10
SC_SEM14OEBIU controller SE signal for SSFDC card; active LOW
D15M15I/OEBIU D15
PC_WAIT2M16IEBIU controller WAIT signal for PC card 2; active LOW
SC_CEM17OEBIU controller CE signal for SSFDC card; active LOW
9397 750 07048
Objective specificationRev. 01 — 20 April 200010 of 26
SC_CLEM18OEBIU controller CLE signal for SSFDC card
SD_A[12]N1OSDRAM controller address bus bit 12
SD_A[13]N2OSDRAM controller address bus bit 13
SD_A[14]N3OSDRAM controller address bus bit 14
SD_A[10]N4OSDRAM controller address bus bit 10
SD_A[6]N5OSDRAM controller address bus bit 6
SD_A[5]N6OSDRAM controller address bus bit 5
V
DD
V
DD
V
DD
V
DD
V
DD
N7-supply voltage
N8-supply voltage
N9-supply voltage
N10-supply voltage
N11-supply voltage
SC_ALEN12OEBIU controller ALE signal for SSFDC card
PC2_CE1N13OEBIU controller CE1 signal for PC card 2; active LOW
PC2_CE2N14OEBIU controller CE2 signal for PC card 2; active LOW
PC_REGN15OEBIU controller REG signal for PC cards; active LOW
PC_WAIT1N16OEBIU controller WAIT signal for PC card 1; active LOW
IOWR_WEN17OEBIU controller IORD signal for PC cards; active LOW
IORD_REN18OEBIU controller IORD signal for PC cards; active LOW
SD_CLKOUTP1OSDRAM controller clock output
SD_CLKINP2ISDRAM controller clock input
SD_CS2P3OSDRAM controller chip select for memory 2; active LOW
SD_CLKENP4OSDRAM controller clock enable
SD_A[11]P5OSDRAM controller address bus bit 11
V
DD
P6-supply voltage
SD_D[7]P7I/OSDRAM controller data bus bit 7
IO25P8I/OI/O port 3 bit 1
IO38P9I/OI/O port 4 bit 6
A25P10I/OEBIU A25 (Strapin[0] during boot sequence)
A21P11I/OEBIU A21 (Strapin[4] during boot sequence)
V
DD
P12-supply voltage
A14P13I/OEBIU A14
SCLKP14OEBIU controller clock signal for external peripherals
A9P15I/OEBIU A9
CAS0P16OEBIU controller CAS signal for DRAM memory for lower byte; used as data
strobe signal for lower byte for general chip select; active LOW
PC1_CE1P17OEBIU controller CE1 signal for PC card 1; active LOW
PC1_CE2P18OEBIU controller CE2 signal for PC card 1; active LOW
SD_CS0R1OSDRAM controller chip select for memory 0; active LOW
SD_CS1R2OSDRAM controller chip select for memory 1; active LOW
SD_CS3R3OSDRAM controller chip select for memory 3; active LOW
9397 750 07048
Objective specificationRev. 01 — 20 April 200011 of 26
SD_D[4]R4I/OSDRAM controller data bus bit 4
SD_RASR5OSDRAM controller row address strobe; active LOW
SD_D[6]R6I/OSDRAM controller data bus bit 6
SD_D[13]R7I/OSDRAM controller data bus bit 13
IO30R8I/OI/O port 3 bit 6
IO37R9I/OI/O port 4 bit 5
A24R10I/OEBIU A24 (Strapin[1] during boot sequence)
A19R11I/OEBIU A19 (Strapin[6] and Strapin[9] during boot sequence)
A18R12I/OEBIU A18 (Strapin[10] during boot sequence)
A13R13I/OEBIU A13
A5R14OEBIU A5
CS6R15OEBIU controller chip select 6; active LOW
CAS1R16OEBIU controller CAS signal for DRAM memory for upper byte; used as data
OER17OEBIU controller output enable signal; active LOW
RASR18OEBIU controller RAS signal for DRAM memory; active LOW
SD_CAST1OSDRAM controller column address strobe; active LOW
SD_WET2OSDRAM controller write enable; active LOW
SD_D[3]T3I/OSDRAM controller data bus bit 3
SD_D[8]T4I/OSDRAM controller data bus bit 8
SD_D[10]T5I/OSDRAM controller data bus bit 10
SD_D[14]T6I/OSDRAM controller data bus bit 14
IO26T7I/OI/O port 3 bit 2
IO29T8I/OI/O port 3 bit 5
IO33T9I/OI/O port 4 bit 1
IO36T10I/OI/O port 4 bit 4
A23T11I/OEBIU A23 (Strapin[2] during boot sequence)
A16T12I/OEBIU A16
A12T13I/OEBIU A12
A3T14OEBIU A3
CS7T15OEBIU controller chip select 7; active LOW
CS4T16OEBIU controller chip select 4; active LOW
WET17OEBIU controller write enable signal; active LOW
CS_WAITT18OEBIU controller wait signal for chip selects; active LOW
SD_DQM0U1OSDRAM controller DQ mask enable for byte 0; active LOW
SD_DQM1U2OSDRAM controller DQ mask enable for byte 1; active LOW
SD_D[2]U3I/OSDRAM controller data bus bit 2
SD_D[9]U4I/OSDRAM controller data bus bit 9
SD_D[11]U5I/OSDRAM controller data bus bit 11
SD_D[15]U6I/OSDRAM controller data bus bit 15
IO27U7I/OI/O port 3 bit 3
…continued
strobe signal for upper byte for general chip select; active LOW
9397 750 07048
Objective specificationRev. 01 — 20 April 200012 of 26
IO32U8I/OI/O port 4 bit 0
IO34U9I/OI/O port 4 bit 2
A22U10I/OEBIU A22 (Strapin[3] during boot sequence)
A17U11I/OEBIU A17 (Strapin[11] during boot sequence)
A11U12I/OEBIU A11
A8U13I/OEBIU A8
A4U14OEBIU A4
A2U15OEBIU A2
CS5U16OEBIU controller chip select 5; active LOW
CS3U17OEBIU controller chip select 3; active LOW
CS0U18OEBIU controller chip select 0; active LOW
SD_D[0]V1I/OSDRAM controller data bus bit 0
SD_D[1]V2I/OSDRAM controller data bus bit 1
SD_D[5]V3I/OSDRAM controller data bus bit 5
SD_D[12]V4I/OSDRAM controller data bus bit 12
IO24V5I/OI/O port 3 bit 0
IO28V6I/OI/O port 3 bit 4
IO31V7I/OI/O port 3 bit 7
IO35V8I/OI/O port 4 bit 3
IO39V9I/OI/O port 4 bit 7
A20V10I/OEBIU A20 (Strapin[5] and Strapin[8] during boot sequence)
A15V11I/OEBIU A15
A10V12I/OEBIU A10
A7V13I/OEBIU A7
A6V14I/OEBIU A6
A1V15OEBIU A1
A0V16OEBIU A0
CS2V17OEBIU controller chip select 2; active LOW
CS1V18OEBIU controller chip select 1; active LOW
…continued
9397 750 07048
Objective specificationRev. 01 — 20 April 200013 of 26
In accordance with the Absolute Maximum Rating System (IEC 60134).
SymbolParameterConditionsMinMaxUnit
V
V
V
I
DD
I
SS
T
[1] Value may not exceed 4 V.
[2] Including voltage on outputs in 3-state mode.
[3] Only valid when supply voltage is present.
[4] The peak current is limited to 10 times the corresponding maximum current.
[5] Dependent of package and not yet determined.
DDD
DDA
I
stg
SAA8122A
Digital Still Camera Processor (ImagIC family)
digital supply voltage−0.54V
analog supply voltage−0.54V
DC input voltagegeneral
5 V tolerant
cells only
DC supply current per
supply pin
DC ground current per
ground pin
storage temperature
[1]
−0.5VDD+ 0.5 V
[2]
[2]
−0.5−0.5V
[3]
[4]
−60mA
[4]
−60mA
[5]
0125°C
8.Characteristics
Table 5:General supply characteristics
SymbolParameterConditionsMinTypMaxUnit
V
DDD
V
DDA(DLL)
V
DDA(LCDR)
V
DDA(LCDG)
V
DDA(LCDB)
V
DDA(OUTPUT1)
V
DDA(OUTPUT2)
V
DDA(ADC)
V
DDA(PPG1)
V
DDA(PPG0)
V
DDA(BG)
V
DDA(PLL)
V
DDA(SPLL)
V
DDD(RTC)
[1] V
DDD(RTC)
digital supply voltage3.03.33.6V
analog supply voltage for DLL3.03.33.6V
analog supply voltage for LCDR output of DAC3.03.33.6V
analog supply voltage for LCDG output of DAC3.03.33.6V
analog supply voltage for LCDB3.03.33.6V
analog supply voltage for video output 1 of DAC3.03.33.6V
analog supply voltage for video output 2 of DAC3.03.33.6V
analog supply voltage for ADC3.03.33.6V
analog supply voltage for PPG3.03.33.6V
analog supply voltage for PPG3.03.33.6V
analog supply voltage for bandgap3.03.33.6V
analog supply voltage for PLL3.03.33.6V
analog supply voltage for SPLL3.03.33.6V
digital supply voltage for RTC
is the single supply which may be on when the others are off. In this case the I/Os of the SAA8122A have to be at 0 V.
[1]
3.03.33.6V
9397 750 07048
Objective specificationRev. 01 — 20 April 200014 of 26
LOW-level digital input voltage-0-0.8V
HIGH-level digital input voltage-2.0-5.5V
LOW-level digital output voltageIOL= 2 mA--0.4V
HIGH-level digital output voltageIOH= −2mAV
− 0.4 -V
DDD
DDD
V
input capacitance--1.5-pF
maximum output load capacitance---30pF
LOW-level output currentVOL= 0.4 V;
LOW-level digital input voltage-0-0.8V
HIGH-level digital input voltage-2.0-5.5V
LOW-level digital output voltageIOL= 1 mA0-0.4V
HIGH-level digital output voltageIOH= −1mAV
− 0.4 -V
DDD
DDD
V
input capacitance--1.4-pF
maximum output load capacitance---30pF
LOW-level output currentVOL= 0.4 V;
10.1 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
Packages
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.
10.2 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.
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.
SAA8122A
Digital Still Camera Processor (ImagIC family)
Data Handbook IC26; Integrated Circuit
(document order number 9398 652 90011).
Typical reflow peak temperatures range from 215 to 250 °C. The top-surface
temperature of the packages should preferable be kept below 230 °C.
10.3 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.
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:
Use a double-wave soldering method comprising a turbulent wave with high
•
upward pressure followed by a smooth laminar wave.
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;
– 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.
9397 750 07048
Objective specificationRev. 01 — 20 April 200022 of 26
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.
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.
10.4 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.
When using a dedicated tool, all other leads can be soldered in one operation within
2 to 5 seconds between 270 and 320 °C.
10.5 Package related soldering information
Table 7:Suitability of surface mount IC packages for wave and reflow soldering
[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
Circuit Packages; Section: Packing Methods
[2] These packages are not suitable for wavesoldering 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, QFP and TQFP 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.
.
Data Handbook IC26; Integrated
11. Revision history
Table 8:Revision history
Rev DateCPCNDescription
01 20000420-Objective specification; initial version
9397 750 07048
Objective specificationRev. 01 — 20 April 200023 of 26
Objective specificationDevelopmentThis data sheet contains the design target or goal specifications for product development. Specification may
change in any manner without notice.
Preliminary specification QualificationThis data sheet contains preliminary data, and supplementary data will be published at a later date. Philips
Semiconductors reserves the right to make changes at any time without notice in order to improve design and
supply the best possible product.
Product specificationProductionThis data sheet contains final specifications. Philips Semiconductors reserves the right to make changes at any
time without notice in order to improve design and supply the best possible product.
[1] Please consult the most recently issued data sheet before initiating or completing a design.
13. Definitions
Short-form specification — The data in a short-form specification is
extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with
the Absolute Maximum Rating System (IEC 60134). 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 — Applications that are described herein for any
of these products are for illustrative purposes only. Philips Semiconductors
make no representation or warranty that such applications will be suitable for
the specified use without further testing or modification.
14. Disclaimers
Life support — 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 Semiconductors
[1]
customers using or selling these products for use in such applications do so
at their own risk and agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.
Right to make changes — Philips Semiconductors reserves the right to
make changes, without notice, in the products, including circuits, standard
cells, and/or software, described or contained herein in order to improve
design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no
licence or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products
are free from patent, copyright, or mask work right infringement, unless
otherwise specified.
15. Licenses
Purchase of Philips I2C components
2
Purchase of Philips I
under the Philips’ I
2
I
C system provided the system conforms to the I2C
specification defined by Philips. This specification can be
ordered using the code 9398 393 40011.
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.
Date of release: 20 April 2000Document order number: 9397 750 07048
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