U4283BM Datasheet, PDF (6/9 Pages) TEMIC Semiconductors – AM / FM - PLL

U4283BM
Parameters
Fall time SDA, SCL
Period of SCL
HIGH
LOW
Setup Time
Start condition
Data
Stop condition
Time the bus must be free
before a new transmission
can be started
Hold time
Start condition
DATA
Bus Timing
Test Conditions / Pins Symbol Min.
Typ.
Max.
Unit
Pins 2 asn 3
t_f
Pin 2
t_H
4.0
t_L
4.7
300
ns
ms
ms
t_sSTA
4.7
ms
t_sDAT
250
ns
t_sSTOP
4.7
ms
t_wSTA
4.7
ms
t_hSTA
4.0
ms
t_hDAT
0
ms
SDA
t_wSTA
t_r
t_f
t_hSTA
SCL
P
S ^thSTA tL
t_hDAT
t_H
t_sSTA
P = Stop, S = Start
Figure 4.
t_hDAT
t_{sSTOP P}
93 7671 e
The following hints are recommended:
D C₃ = 100 nF should be very close to Pin 1 (V_DD) and
Pin 20 (GND1)
D GND2 (Pin 10 - analog ground) and GND 1
(Pin 20 - digital ground ) must be connected according
to figure 6
D 4 MHz quartz must be very close to Pin 18 and Pin 19
D Components of the charge pump (C₁/R₁ for AM and
C₂/R₂ for FM) should be very close to Pin 15 with
respect to Pin 14.
6 (9)
TELEFUNKEN Semiconductors
Preliminary Information
Rev. A1, 15-May-96