saa7282 NXP Semiconductors, saa7282 Datasheet - Page 17

• Manufacturer Part Number: saa7282
• Description: Terrestrial Digital Sound Decoder Tdsd2
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Notes
1. Outputs OPL and OPR are measured with external components as recommended in Fig.11.
2. Total analog performance is limited by dynamic range of the NICAM 728 system. Due to compansion the quantization
3. Measured with a -30 dB, 1 kHz NICAM 728 input signal.
4. Note that a transmitter must internally provide at least a hold time to bridge the undefined region (max. 300 ns) of the
5. If a fast I
6. The output fall time is measured between 3.0 V and 1.5 V for a bus capacitance of 400 pF and an active pull-up.
July 1993
SDA with respect to SCL (see Fig.8)
f
t
t
t
t
t
t
t
t
t
t
t
SCL
BUF
HD;STA
LOW
HIGH
SU;STA
HD;DAT
SU;DAT
r
f
SU;STO
of
SYMBOL
Terrestrial Digital Sound Decoder (TDSD2)
noise is never lower than approximately -62 dB with respect to the input level.
falling edge of SCL.
fulfilled if this device cannot stretch the LOW level of the SCL signal. If a device stretches the LOW level of the SCL
signal, then data to SD9A must be asserted (t
released to be compatible with the up to 100 kbit/s I
2
C-bus device is used in an up to 100 kbit/s I
SCL clock frequency
bus free time
start code hold time
SCL clock LOW time
SCL clock HIGH time
start code set-up time
data hold time
data set-up time
SDA and SCL rise time
SDA and SCL fall time
stop code set-up time
output fall time
PARAMETER
note 4
note 5
note 6
RD(max)
CONDITIONS
2
2
C-bus specification.
+ t
C-bus system, then the requirement t
17
SU;DAT
) = 1000 + 250 = 1250 ns before the SCL signal is
0
1300
600
1300
600
600
0
100
50
50
600
50
MIN.
TYP.
SU;DAT
400
300
300
200
Product specification
MAX.
250 ns is always
SAA7282
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
UNIT