HD49815TF

Digital Camera Signal Processor

ADE-207-316 (Z)

1st Edition

Sep. 1999

Description

The HD49815TF is a CMOS IC that has been developed as a digital signal-processing IC for CCD-camera
digital-signal-processing systems.

Functions

CCD-sensor drive-pulse generation (TG)

Digital AGC (automatic gain control)

Color signal separation circuit

RGB matrix

RGB gain

RGB and Y gamma

Color-difference matrix

Enhancer

RGB and Y setup

Digital I/F (4:2:2)

Zoom control

Mirror reversal

Synchronization signal generator for encoding (SSG)

AWB, AE, and AF detection

Two-channel 8-bit D/A converter

Features

The HD49815TF provides camera-signal processing, TG, SSG, zoom, and D/A functions and other
functions in a single chip and supports high system-integration level.

In conjunction with the HD49323AF-01 (CDS/AGC + 10-bit ADC) and the control microcomputer, the
HD49815TF forms a three-chip kit that can implement an optimal CCD-camera digital-signal-
processing system.

The HD49815TF provides the zoom function and controls the 1- to 256- times linear zoom. It also
provides the half-mirror function.

HD49815TF

Features (cont)

Since the HD49815TF can be made compatible with the former product, HD49811TFA, through
software, a shorter development term is enabled.

Since software controls AWB, AE, and AF, any protocol can be prepared according to the camera
shooting conditions.

Programmable TG enables use of any CCD device.

System Block Diagram

HD49815TF

CCD HD49323AF-01

Lens

C-signal output

Y-signal output

R-Y/B-Y
digital output

Y-signal
digital output

Color

processing

Zoom

processing

Luminance
processing

Input

line

memory

Micro-

processor

I/F

SSG

System

control

(iris)

control

AWB

(white

balance)

control

V.Driver

8-bit single-chip microcomputer (H8 series)

Encode

DAC

CDS/AGC+
10-bit ADC

HD49815TF

Pin Arrangement

(Top view)

TFP-120

XSUB

DKF_LD

T_CP(TEST)

TY_K

SDI

SDCK

SLD

SDO

EP(1)

EP(2)

HD_IN

M_CK

CBLK

CSYNC

SCBLK

HSYNC

IDP

X1I

X1O

IDS

MCK_S

RESET

ZOOM_HD

NME

CPI(1)

CPI(2)

CPI(3)

CPI(4)

CPI(5)

CPI(6)

CPI(7)

CPI(8)

CPO(1)

CPO(2)

CPO(3)

CPO(4)

CPO(5)

CPO(6)

CPO(7)

CPO(8)

YPI(1)

YPI(2)

YPI(3)

YPI(4)

YPI(5)

YPI(6)

YPI(7)

YPI(8)

YPO(1)

PLL_N

PLL_P

X2I

X2O

FSC

C_OUT

CBU

CBL

REXT

Y_OUT

DICK

NRYBY

YPO(8)

YPO(7)

YPO(6)

YPO(5)

YPO(4)

YPO(3)

YPO(2)

XSG2

XSG1

XV4

XV3

XV2

XV1

OBP

SP2

SP1

DSP_MCK

CPREF

ADCK

AD(1)

AD(2)

AD(3)

AD(4)

AD(5)

AD(6)

AD(7)

AD(8)

AD(9)

AD(10)

32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91

HD49815TF

Pin Description

Pin No.

Symbol

Pin Name

I/O

Description

I/O
Format

XSUB

CCD shutter pulse

CCD control pulse

ZC2R

DKF_LD

Line input LD

Line input dedicated load

ICS

T_CP

Test

Test pin (GND input)

TY_K

Title SW

Title-killer SW (1 = On, 0 = Off)

ICD

SDI

State data input

State data-setting data input

SDCK

State data clock

State data-setting clock

ICS

SLD

State data load pulse

State data-latch pulse

ICS

SDO

AWB, AE, data output

AWB, AE, and AF detection-data output

ZC2R

EP (1)

AE window pulse 1

Iris detection-area-setting pulse:
SP-A7 [8] output changeover

ICZC2R

EP (2)

AE window pulse 2

Iris detection-area-setting pulse:
SP-A7 [8] output changeover

ICZC2R

Burst flag

Burst flag output

ICZC2R

HD_IN

External CSYNC input

ICSD

M_CK

Microprocessor clock

Microprocessor clock output
(1/2 or 1/4 dividing of X'tal 1)

OC2R

3.3 V power supply

VCCI

GND

GNDI

Field vertical output

Vertical synchronization pulse

ICZC2R

HD output

Horizontal synchronization pulse

ICZC2R

CBLK

Blanking pulse

ICZC2R

CSYNC

SYNC output

SYNC pulse

ICZC2R

SCBLK

SC blanking pulse

Subcarrier blanking pulse (SECAM)

ICZC2R

HSYNC

Horizontal SYNC

Horizontal SYNC pulse (SECAM)

OC2R

Identity

SECAM determination pulse

OC2R

IDP

Identity pulse

SECAM determination pulse

ICZC2R

3.3 V power supply

VCCC

GND

GNDC

X1I

X'tal 1 input

2fsc oscillator input

IQ3

X1O

X'tal 1 output

2fsc oscillator output

OQ3

IDS

Line ID reset input

Line-determination-signal input

ICD

MCK_S

MCK output SW

Pin 13 MCK dividing setting SW
(1 = 1/2, 0 = 1/4)

RESET

Reset

Reset: to restore the initial data settings

ICS

HD49815TF

Pin Description (cont)

Pin No.

Symbol

Pin Name

I/O

Description

I/O
Format

PLL_N

PLL negative

PLL signal output

ZC2

PLL_P

PLL positive

PLL signal output

ZC2

Vertical reset

Vertical synchronization signal input

ICSD

X2I

X'tal 2 input

4fsc oscillator input

IQ2

X2O

X'tal 2 output

4fsc oscillator output

OQ2

FSC

Sub carrier frequency

fsc output

ICZC2R

GND

GNDA

Analog V

Analog system power supply: 3.3 V

VCCA

GND

GNDA

Analog V

Analog system power supply: 3.3 V

VCCA

GND

GNDA

C_OUT

C analog signal output

Chrominance-signal analog output

CBU

Current buffer upper

D/A upper current source

CBL

Current buffer lower

D/A lower current source

REXT

Reference resister EXT

Reference voltage input

Y_OUT

Y analog signal output

Luminance-signal analog output

GND

GNDA

Analog V

Analog system power supply: 3.3 V

VCCA

GND

GNDA

Digital system power supply: 3.3 V

VCCI

GND

GNDI

DICK

Digital interface clock

Digital interface clock output

ICZC2R

NRYBY

R-Y, B-Y phase output

Color-difference signal phase clock

ICZC2R

YPO (8)

Y parallel output (8); MSB

Luminance-signal digital output MSB

OC2R

YPO (7)

Y parallel output (7)