DATA SHEET
Preliminary specification
Supersedes data of 1999 Jun 28
File under Integrated Circuits, IC22
2000 Jan 27
INTEGRATED CIRCUITS
SAA8115HL
Digital camera USB interface
2000 Jan 27
2
Philips Semiconductors
Preliminary specification
Digital camera USB interface
SAA8115HL
CONTENTS
1
FEATURES
2
APPLICATIONS
3
GENERAL DESCRIPTION
4
ORDERING INFORMATION
5
QUICK REFERENCE DATA
6
BLOCK DIAGRAM
7
PINNING
8
FUNCTIONAL DESCRIPTION
8.1
Video synchronization
8.2
Frame rate converter and SDRAM interface
8.3
Video formatter: downsampler and cutter
8.4
Compression engine
8.5
Transfer buffer
8.6
USB video FIFO
8.7
PSIE-MMU, I
2
C-bus interface and USB RAM
space
8.8
ATX interface
8.9
Audio
8.10
Sensor pulse pattern generator
8.11
Power management
8.12
Power supply
9
CONTROL REGISTER DESCRIPTION
9.1
SNERT (UART)
9.2
I
2
C-bus interface
10
LIMITING VALUES
11
THERMAL CHARACTERISTICS
12
OPERATING CHARACTERISTICS
13
TIMING
14
APPLICATION INFORMATION
15
PACKAGE OUTLINE
16
SOLDERING
16.1
Introduction to soldering surface mount
packages
16.2
Reflow soldering
16.3
Wave soldering
16.4
Manual soldering
16.5
Suitability of surface mount IC packages for
wave and reflow soldering methods
17
DEFINITIONS
18
LIFE SUPPORT APPLICATIONS
19
PURCHASE OF PHILIPS I
2
C COMPONENTS
2000 Jan 27
3
Philips Semiconductors
Preliminary specification
Digital camera USB interface
SAA8115HL
1
FEATURES
VGA (progressive mode), CIF and medium resolution
(PAL non-interlaced mode) CCD sensors compliant
D1 digital video input (8 bits YUV 4 : 2 : 2 time
multiplexed)
Internal Pulse Pattern Generator (PPG) dedicated for
VGA Panasonic, CIF and medium resolution Sharp
sensors or compatibles, and frame rate selection
Frame rate converter
SDRAM interface for high quality VGA snapshot
(uncompressed 4 : 2 : 2 or 4 : 2 : 0)
Downsampler and scaler (programmable formatter for
CIF, QCIF, sub-QCIF, SIF and QSIF) controlled via
SNERT (UART) interface
Flexible compression engine controlled via SNERT
(UART) interface
Selectable output frame rate (up to 15 fps in VGA, up to
30 fps in CIF and QCIF)
Video packetizer FIFO
I
2
C-bus interface for communication between the USB
protocol hardware and the external microcontroller
Microphone/audio input to USB (microphone supply,
controllable gain and ADC)
Integrated analog bus driver (ATX)
Integrated main oscillator
Integrated 5 V power supply and reset circuit including
functionalities for bus-powered USB device
Programmable (frequency and duty cycle) switch mode
power signal for CCD supply
Miscellaneous functions (e.g. power management, PLL
for audio frequencies).
2
APPLICATIONS
Low-cost desktop video applications with USB interface.
3
GENERAL DESCRIPTION
The SAA8115HL is the second generation of integrated
circuit applicable in PC video cameras to convert D1 video
signals and analog audio signals to properly formatted
USB packets.
This powerful successor of the SAA8117HL can handle up
to 15 fps in VGA format or 30 fps in CIF format. High
snapshot quality is achievable using the SDRAM interface
to an external memory.
It is designed as a back-end of the SAA8112HL (general
camera digital processing IC) and is optimized for use with
the TDA8784 to TDA8787 (camera pre-processing ICs).
2000 Jan 27
4
Philips Semiconductors
Preliminary specification
Digital camera USB interface
SAA8115HL
4
ORDERING INFORMATION
5
QUICK REFERENCE DATA
Measured over full voltage and temperature range
Note
1. This concerns pins VBUS1 and VBUS2.
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
SAA8115HL
LQFP144
plastic low profile quad flat package; 144 leads; body 20
20
1.4 mm
SOT486-1
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
DDD
digital supply voltage
3.0
3.3
3.6
V
V
DDA
analog supply voltage
3.0
3.3
3.6
V
V
DDA_USB
analog supply voltage from USB
note 1
4.0
5.0
5.5
V
I
DD(tot)
total supply current
V
DDD
= 3.3 V
-
-
tbf
mA
V
I
input signal levels
3.0 V < V
DDD
< 3.6 V
low voltage TTL compatible
V
V
O
output signal levels
3.0 V < V
DDD
< 3.6 V
low voltage TTL compatible
V
f
clk
clock frequency
-
48
-
MHz
P
tot
total power dissipation
T
amb
= 25
C
-
-
tbf
mW
T
stg
storage temperature
-
55
-
-
C
T
amb
ambient temperature
0
25
70
C
T
j
junction temperature
T
amb
= 70
C
-
40
-
+125
C
2000
Jan
27
5
Philips Semiconductors
Preliminar
y specification
Digital camer
a USB interf
ace
SAA8115HL
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6
BLOCK DIA
GRAM
ha
ndbook, full pagewidth
FCE349
COMPRESSION
ENGINE
VIDEO
FORMATTER
FRAME RATE
CONVERTER
SNERT
INTERFACE
YUV7
to YUV0
LLC
VS
HREF
TRANSFER
BUFFER
USB
VIDEO
FIFO
PSIE MMU
AUDIO
ADC
AUDIO
PLL
I
2
C-BUS
INTERFACE
ATX
USB
RAM
SPACE
POWER MANAGEMENT
UCPOR
UCINT
UCCLK
104
99
ATXDM
ATXDP
81
80
SDA
SCL
107
106
32
31
30
SNDA
SNRES
SNCL
36
35
34
SDRAM
INTERFACE
AD10
to AD0
DQ15
to DQ0
77, 76, 75, 74, 67, 65,
62, 60, 61, 63, 64, 66,
70, 71, 72, 73
48, 47, 45, 44,
42, 39, 38, 40,
41, 43, 46
28, 27, 26, 25
22, 21, 20, 19
AUDIO
VARIABLE
GAIN
AMPLIFIER
VGAIN
130
AUDIO
LOW NOISE
AMPLIFIER
LNAOUT
131
MICIN
132
MICROPHONE
SUPPLY
MICSUPPLY
133
MAIN
OSCILLATOR
XOUT
121
XIN
120
CASB
56
RASB
52
SDCLK
58
WEB
57
CLKEN
55
CSB
51
DQM
59
M3 to M0
115, 116,
117, 118
RESET
33
SUSPEND
CLOCKON
100 109
TRC
112
SNAPSHOT
110
SUSPREADYNOT
111
SMP
108
GENPOR
103
V
DDD1
to V
DDD3
24,
53,
102
V
DD1
to V
DD6
7, 16,
37, 50,
69, 141
V
DDA1
to V
DDA6
82, 84,
85, 122,
124, 125
DGND1 to DGND4
23, 29,
54, 101
AGND1 to AGND6
79, 88,
93, 119,
123, 134
GND1 to GND7
6, 18,
49, 68,
78, 98,
142
RESERVED1 to
RESERVED6
83, 86,
89, 96,
97, 129
REF1 to REF3
126,
127,
128
DC-TO-DC CONVERTER
OFF
114
POR
113
SWITCHED5V
95
LXUP
94
LXDOWN
92
VBUS2
91
VBUS1
90
3V3
87
PULSE PATTERN GENERATOR
(PPG)
CLK2
17
CLK1
11
HD
15
VD
14
BCP
13
DCP
12
FCDS
10
FS
9
SHUTTER
5
RG
8
C1 to C4
3, 2,
1, 4
A1 to A4
139, 140,
143, 144
B1 to B4
137, 138,
136, 135
105
SAA8115HL
Fig.1 Block diagram.
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