SAA7710T データシートの表示（PDF） - Philips Electronics
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SAA7710T Datasheet PDF : 28 Pages
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Philips Semiconductors
Dolby* Pro Logic Surround;
Incredible Sound
Product specification
SAA7710T
DSP_RESET
The DSP_RESET pin is active LOW and has an internal
pull-up resistor. To enable a proper switch-on of the supply
voltage a capacitor should be connected between this pin
and VSS. The capacitor value is such that the chip is in a
reset state as long as the power supply is not stabilized.
The DSP_RESET has the following functions:
• The bits of the input selector control register are set to
logic 0 (see Table 4)
• The program counter is set to address 0000H
• The I2C-bus interface is initialised; the SDA pin is
guaranteed high-impedance.
When the level on the DSP_RESET pin is HIGH, the DSP
program starts to run.
When the level on the DSP_RESET pin is low, the SDA pin
is asynchronously set to a high-impedance state. In the
absence of a clock and during the power-up reset, the SDA
line is high-impedance.
TEST MODE CONNECTIONS (TSCAN, RTCB AND SHTCB
PINS)
The TSCAN, RTCB and SHTCB pins are used to put the
chip in test mode and to test the internal connections.
Each pin has an internal pull-down resistor to ground.
In the application these pins can be left open-circuit or
connected to ground.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC134).
SYMBOL
PARAMETER
CONDITIONS
VDD
∆VDD
Vi(max)
lIK
lOK
lO
lDD
lDD
lSS
VESD
LTCH
Ptot
Tamb
Tstg
DC supply voltage
voltage difference between two VDDx pins
maximum input voltage
DC input clamp diode current
DC output clamp diode current output
type 4 mA
DC output source or sink current output
type 4 mA
DC output source or sink current output
type 4 mA
DC VDD supply current per pin
DC VSS supply current per pin
ESD sensitivity for all pins
human body model
machine model all pins except pin OSC
machine model pin OSC
latch-up protection
total power dissipation
operating ambient temperature
storage temperature
Vi < −0.5 V or
Vi > VDD + 0.5 V
Vo < −0.5 V or
Vo > VDD + 0.5 V
−0.5 V < Vo < VDD + 0.5 V
−0.5 V < Vo < VDD + 0.5 V
100 pF; 1500 Ω
200 pF; 2.5 µH; 0 Ω
200 pF; 2.5 µH; 0 Ω
CIC spec/test method
MIN.
−0.5
−
−0.5
−
MAX. UNIT
+6.5
V
550
mV
VDD + 0.5 V
10
mA
−
20
mA
−
20
mA
−
20
mA
−
50
mA
−
50
mA
3000 −
V
300 −
V
250 −
V
100 −
mA
−
700
mW
−40 +85
°C
−65 +150
°C
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
Rth j-a
thermal resistance from junction to ambient in free air
VALUE
57
UNIT
K/W
1998 Mar 13
17
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