MC44C404EP FREESCALE [Freescale Semiconductor, Inc], MC44C404EP Datasheet - Page 3

• Manufacturer Part Number: MC44C404EP
• Description: NICAM 728 - Stereo Encoder
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Freescale Semiconductor
Table 1. Pin Descriptions (Listed by Function)
Analog
Digital
Clocks
Power Supply
DV
Signal Name
CLK4MHZ
XTALOUT
SS
ADCV
ADCV
VREFM
XTALIN
VREFP
VAGO
SYS_I
QPSK
DV
OV
VINA
VINB
and OV
NC
C1
C2
C3
C4
DD
DD
DD
SS
SS
ORIENTATION MARK
1, 12, 13, 14, 17, 23
16, 18, 19, 24, 26
3, 6, 10
11, 25
Pin #
32
31
30
29
20
15
28
27
22
21
9
4
5
2
7
8
Figure 2. MC44C404 32-Lead TQFN Package
ADCV
ADCV
VREFM
VREFP
VAGO
VAGO
VINB
NC
DD
SS
PIN DESCRIPTION
A channel input
ADC voltage ref. bypass plus
Analog virtual ground
ADC voltage ref. bypass minus
B channel input
Control inputs 1, 2 and 3.
See Table 2, Application Control Bits for setting these application control bits.
Control input 4 is the reserve sound switching flag.
C4 = 0: The analog signal is not carrying the same program as the digital signal.
C4 = 1: The analog sound signal is carrying the same program as the digital signal.
Output system format select.
SYS_I = 0: The output format is System B, G, H, K1 or L.
SYS_I = 1: The output format is System I.
QPSK NICAM audio output
No connection
Crystal oscillator input
Crystal oscillator output
4 MHz clock output for Audio/Video modulator IC
ADC analog supply voltage, 3.3 V
ADC analog ground
Digital logic supply voltage, 1.8 V
Digital logic/I/O ground
I/O supply voltage, 3.3 V
MC44C404
PIN 1
DV
NC
CLK4MHZ
DV
SYS_SEL
DV
DV
NC
SS
DD
SS
SS
Description
MC44C404
3