ETC AVPRO5001

AVPro® 5001
Quad A/V Drivers
Advanced Information
September 1999
DESCRIPTION
FEATURES
The AVPro 5001 device is an audio/video driver IC
that supports four video inputs and two audio inputs.
Each video paths has a gain of 2 with output buffers
designed to drive a 137 ohm load. Each audio path
has two output drivers that are buffered to provide 2
Vrms output (3.2 Vrms maximum). In addition, the
audio drivers use +/- 5 volt power supplies so that
the output is centered around ground. This allows
direct coupling of the 5001 audio outputs to the
associated load. Typical applications for the 5001
include DVD players, VCRs, and digital receivers for
satellite, cable, and terrestrial television.
• Video section
- Internal DC restore circuits
- 150 ohm drivers
• Audio section
- better than 90 dB SNR+distortion
- direct coupled outputs
• +5V and -5V power supplies
• 24-lead small outline (SO) package
BLOCK DIAGRAM
Tgen
Osc
Vid1
VCCv
Vid1_out
DCR
Vid2
Vid2_out
DCR
Vid3
Vid3_out
DCR
Vid4
Vid4_out
DCR
RRef
Cbyp
Ref
Gen
GNDv
Aud1_out1
Mode
Aud1_out2
VEEv
VCCa
Aud1
Aud2_out1
Aud2
Aud2_out2
GNDa
VEEa
AVPro® 5001
Quad A/V Drivers
VIDEO DESCRIPTION
AUDIO DESCRIPTION
The 5001 video section provides inputs for four
video signals which are typically AC coupled into
the device. The pin labeled MODE is used to
select the type of video inputs that are supported.
When the MODE pin is connected to ground, the
device is configured to support luma (Y), chroma
(C), and two composite signals. In this mode, the
Vid1, Vid2, and Vid3 paths each have an active
DC restore circuit. The DC restore circuit triggers
on the falling edge of the incoming video sync
pulse and then tries to force the blank level to a
fixed DC value. The trigger from the Vid1 path is
also passed along to the Vid2 and Vid3 paths to
insure that the DC restore circuits are triggered.
The Vid4 path is used for a chroma signal. This
path is set to a fixed DC level of 0.89V.
When the MODE pin is left open, the device is
configured to support RGB signals and a
composite signal. In this mode, all video paths
have active DC restore circuits. The Vid1 path
provides a master trigger to the other three DC
restore circuits. This accommodates an application
where the video sync for the RGB signals is
provided by the composite signal. The Vid2 path
also provides a trigger for the Vid3 and Vid4 pins.
This supports applications where the sync signal is
embedded in one of the RGB signals (sync on
green). For this application, the video source that
contains the sync pulse must be applied to Vid2.
An internal timing circuit is used to allow the DC
restore circuit to initially acquire the correct DC
level. The timing circuit requires that a 470 pF
capacitor be connected between the Tgen pin and
ground.
The 5001 audio section provides inputs for two audio
signals, typically left and right channels of a stereo
audio source. In many applications, the audio inputs
are generated by an external DAC.
The impedance of the 5001 audio input is
approximately 40k ohms. Each input has two
independently buffered outputs. Each buffer can
output a signal of 2 Vpp. The audio buffers use +5V
and -5V power supplies which allow the DC level of
the output to be 0 Vdc. For most applications, this
allows the inputs and outputs of the 5001 to be direct
coupled to the source and load. A resistor in series
with the load is suggested to provide over-current
protection.
Reference Generator
The 5001 generates internal reference currents based
on an external 10.0k ohm, 1% resistor connected
between the RRef pin and analog ground. The
reference generator also uses a 0.01 uF capacitor
connected between the Cbyp pin and analog ground
for filtering purposes.
Vid1
Aud1
270
270
Typical Audio Circuit
Vid1_out
62
Osc
RL =
10k
Aud1_out2
DCR
Tgen
Aud1_out1
RL =
75
470
pF
Typical Video Circuit
The output amplifiers are designed to provide a
gain of approximately two (2) so that a 137 ohm
load can be driven. The output impedance of each
video driver is nominally 12 ohm. An external 62
ohm resistor is placed in series with the output to
provide a nominal 75 ohm output impedance to
the system.
2
RL =
10k
AVPro® 5001
Quad A/V Drivers
PIN DESCRIPTIONS (Pins marked N/C should be left unconnected during normal use)
NAME
TYPE
DESCRIPTION
I/O Pins:
Aud_1
I
Audio input 1: This pin accepts an audio signal that can be either direct coupled or ACcoupled. This pin is typically connected to one channel of a stereo audio source.
Aud_2
I
Audio input 2: This pin accepts an audio signal that can be either direct coupled or ACcoupled. This pin is typically connected to the other channel of a stereo audio source.
Vid_1
I
Video input 1: This pin accepts an AC-coupled video signal. In a typical system, this pin
will be connected to a composite (CVBS) signal source.
Vid_2
I
Video input 2: This pin accepts an AC-coupled video signal. In a typical system, this pin
will be connected to a composite (CVBS) source or a green signal source (RGB).
Vid_3
I
Video input 3: This pin accepts an AC-coupled video signal. In a typical system, this pin
will be connected to a luma signal source or a blue signal source (RGB).
Vid_4
I
Video input 4: This pin accepts an AC-coupled video signal. In a typical system, this pin
will be connected to a chroma signal source or a red signal source (RGB).
Aud1_out1
O
Audio 1 output 1: This pin is the primary output for the Aud_1 input channel.
Aud1_out2
O
Audio 1 output 2: This pin is the secondary output for the Aud_1 input channel.
Aud2_out1
O
Audio 2 output 1: This pin is the primary output for the Aud_2 input channel.
Aud2_out2
O
Audio 2 output 2: This pin is the secondary output for the Aud_2 input channel.
Mode
I
Mode select: This pin selects the video mode. When left open, the device is in the RGB
mode. When connected to ground, the device is in the CVBS/S-video mode.
Vid1_out
O
Video 1 output: This pin is the buffered output of the Vid_1 input pin with a gain of 2. For
a typical 75 ohm load, an external 62 ohms should be added in series with the load.
Vid2_out
O
Video 2 output: This pin is the buffered output of the Vid_2 input pin with a gain of 2. For
a typical 75 ohm load, an external 62 ohms should be added in series with the load.
Vid3_out
O
Video 3 output: This pin is the buffered output of the Vid_3 input pin with a gain of 2. For
a typical 75 ohm load, an external 62 ohms should be added in series with the load.
Vid4_out
O
Video 4 output: This pin is the buffered output of the Vid_4 input pin with a gain of 2. For
a typical 75 ohm load, an external 62 ohms should be added in series with the load.
Power/Ground Pins:
VCCa,v
-
+5 VDC power inputs. VCCa is the audio supply, VCCv is the video supply.
VEEa,v
-
-5 VDC power inputs. VEEa is the audio supply, VEEv is the video supply.
Cbyp
-
Internal current reference bypass pin. Add capacitor 0.01 uF to ground.
GNDa,v
-
Ground for all blocks. GNDa is the audio supply, GNDv is the video supply.
RRef
-
Bias point of internal current generator. Add resistor 10.0k to ground.
Tgen
-
Reference point for internal timing circuit. Add capacitor 470 pF to ground.
3
AVPro® 5001
Quad A/V Drivers
ABSOLUTE MAXIMUM RATINGS
Operation beyond the maximum ratings may damage the device
PARAMETER
RATING
UNIT
-55 to 150
°C
+150
°C
Positive supply voltages
Gnd > 0.3; VCC < 6V
V
Negative supply voltages
-6 < VEE < -0.3
V
Gnd -0.3V to VCC+0.3
V
VEE -0.3V to VCC+0.3
V
Storage temperature
Junction operating temperature
Voltage applied to Digital Inputs
audio/video input pins
TARGET SPECIFICATIONS: Unless otherwise specified: 0° < Ta < 70 °C; power supplies VCC = +5.0 V ±5%,
VEE = -5.0 V ±5%.
Operating Characteristics
PARAMETER
CONDITION
MIN
Power dissipation
All outputs loaded
PSRR
fin = 100 Hz, 0.3 Vpp on VCC/ VEE
NOM
MAX
350
UNIT
mW
40
dB
Video Characteristics - Unless otherwise noted, typical output loading on all video outputs is 137Ω. All video
outputs are capable of withstanding a sustained 75 ohm load to ground without damage.
Input impedance
All video inputs
Input dynamic range
fin = 100 kHz, THD < 1.0%
Gain
1.0 Vpp input, fin = 100 kHz
1.85
Output gain inequality
channel to channel
-2.0
kΩ
100
1.5
Output DC level
1.95
Vpp
2.05
V/V
2.0
%
1.0
V
Blank level clamp voltage
RGB, CVBS or luma input
0.55
V
DC level
chroma input
0.89
V
Signal to noise ratio
1 Vpp input
65
dB
Cross talk
fin = 4.43 MHz, 1 Vpp
-55
dB
Output to output differential
delay
fin = 100 kHz
Differential phase
Differential gain
58
-20
20
nsec
CVBS input
2.0
Deg.
CVBS input
2.5
%
4
AVPro® 5001
Quad A/V Drivers
Audio Characteristics - Unless otherwise noted, all audio outputs shall drive a load of 10 kΩ. All audio outputs
will withstand a sustained short to ground without damage.
PARAMETER
CONDITION
MIN
Input impedance
NOM
MAX
kΩ
40
0.95
Gain
fin = 1.0 kHz, 0.5 Vrms
Frequency response
0.5 Vrms input, Flat within ± 0.3
dB
20
kHz
Measured -3 dB point
100
kHz
Dynamic range
fin = 1.0 kHz
90
100
dB
Signal to Noise ratio
fin = 1.0 kHz, 0.5 Vrms
90
100
dB
Distortion (THD)
fin = 1.0 kHz, 0.5 Vrms
0.01
%
fin = 1.0 kHz, 2 Vrms
TBD
%
Output impedance
1.0
UNIT
1.05
Ω
TBD
Output DC Offset
Input to Output
Output phase matching
fin = 1.0 kHz, 0.5 Vrms
30
Channel separation
fin = 1.0 kHz, 0.5 Vrms
5
0.5
90
V/V
mV
Deg.
dB
AVPro® 5001
Quad A/V Drivers
470 pF
Tgen
Osc
VCCv
Vid1
Encoder CVBS
Vid1_out
DCR
Vid2
Vid2_out
DCR
Vid3_out
Vid4_out
Vid4
RRef
Cbyp
0.01 uF
Chroma out
62
DCR
10k
Luma out
62
DCR
Encoder C
Composite 2
62
Vid3
Encoder Y
Composite 1
62
GNDv
Ref
Gen
Aud1_out1
Mode
Left out1
270
Aud1_out2
Left out2
270
VEEv
VCCa
DAC left
Aud1
Aud2_out1
DAC right
Aud2
Aud2_out2
VEEa
GNDa
AVPro 5001: Typical Application Diagram
6
Right out1
270
Right out2
270
AVPro® 5001
Quad A/V Drivers
PACKAGE PIN DESIGNATION
(Top View)
Tgen
Vid1
VCCv
Vid1_out
1
Vid2
Vid3
Vid4
RRef
Cbyp
Vid2_out
Vid3_out
Vid4_out
GNDv
Aud1_out1
Aud1_out2
VCCa
AVPro 5001-CL
(24 SO)
Mode
VEEv
Aud1
Aud2
Aud2_out1
Aud2_out2
VEEa
GNDa
®
AVPRO 5001 (SOL)
MECHANICAL DRAWING
.050 TYP. (1.270)
.305 (7.747)
.285 (7.239)
PIN NO.1
BEVEL
.615 (15.621)
.595 (15.113)
.420 (10.668)
.390 (9.906)
.010 (0.254)
.003 (0.076)
.110 (2.790)
.092 (2.336)
.016 nom (0.40)
24-Lead Small Outline (SOL)
Note: Controlling dimensions are in mm.
7
.335 (8.509)
.320 (8.128)
AVPro® 5001
Quad A/V Drivers
ORDERING INFORMATION
PART DESCRIPTION
®
AVPro 5001 Quad A/V Drivers
ORDER NO.
PACKAGE MARK
Consult factory
AVPro 5001-CL
®
Advanced Information: The Advanced Information data sheet is to be approved for Beta Site and advanced customer information purposes
only. It is not intended to replace the electrical specification for the specific device it represents. This document will be updated and converted
into a Final (Preliminary Data Sheet) upon completion of Design Engineering Validation. Design Engineering should review this documentation
for its accuracy to the definition and the design goals for the product it represents.
No responsibility is assumed by TDK Semiconductor Corporation for use of this product nor for any infringements of patents and trademarks
or other rights of third parties resulting from its use. No license is granted under any patents, patent rights or trademarks of TDK
Semiconductor Corporation and the company reserves the right to make changes in specifications at any time without notice. Accordingly, the
reader is cautioned to verify that you are referencing the most current data sheet before placing orders. To do so, see our web site at
http://www.tsc.tdk.com or contact your local TDK Semiconductor representative.
TDK Semiconductor Corp., 2642 Michelle Dr., Tustin, CA 92780, (714) 508-8800, FAX (714) 508-8877, http://www.tsc.tdk.com
1999 TDK Semiconductor Corporation
9/13/99- rev. - A
8