Datasheet

MAX13335E/MAX13336E
Dual Automotive Differential Audio Receivers
with I
2
C Control and Diagnostics
23
ESD Guide
For maximum protection against IEC 61000-4-2 and ISO
10605 ESD pulses, a 1kI or larger resistor is recom-
mended on every diagnostic D_ pin before the input
AC-coupling capacitor. Additionally, a suitable ESD
diode must be connected from the DC-blocking ceramic
capacitor to ground. The ESD diode can be connected
on either side of the DC-blocking capacitor; however,
depending on application requirements, the IC side
may allow for a lower clamping voltage, which results
in a smaller ESD device. If the input source is always
DC biased to V
BAT
/2, then a unidirectional ESD device
can be used when clamping on the input side of the
DC-blocking capacitor. See Figure 13.
Figure 13. ESD Protection Technique Against IEC 61000-4-2 and ISO 10605 Pulses
MAX13335E/MAX13336E
PGA
D3
PGA
DIAGNOSTICS
I
2
C
AND
CONTROL
D2
D1
D0
INL-
INL+
INR+
INR-
1nF
2.2µF
2.2µF
1nF
1nF
2.2µF
2.2µF
1nF
1kΩ
1kΩ
1kΩ
1kΩ
20Ω
20Ω
20Ω
20Ω