WM8196SCDS Wolfson Microelectronics, WM8196SCDS Datasheet - Page 20

• Manufacturer Part Number: WM8196SCDS
• Description: Video ICs 16-Bit 12MSPS 3-Channel AFE
• Manufacturer: Wolfson Microelectronics
• Type: CCD/CISr

Specifications of WM8196SCDS

• Operating Supply Voltage: 3.3 V or 5 V
• Supply Current: 60 mA
• Maximum Operating Temperature: + 70 C
• Package / Case: SSOP-28
• Conversion Rate: 12000 KSPS
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Number Of Channels: 3
• Resolution: 16 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8196
REFERENCES
POWER SUPPLY
POWER MANAGEMENT
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Figure 19 Internal VSMP Pulses Generated by Programmable VSMP Detect Circuit
The ADC reference voltages are derived from an internal bandgap reference, and buffered to pins
VRT and VRB, where they must be decoupled to ground. Pin VRX is driven by a similar buffer, and
also requires decoupling. The output buffer from the RLCDAC also requires decoupling at pin
VRLC/VBIAS
The WM8196 can run from a 5V single supply or from split 5V (core) and 3.3V (digital interface)
supplies.
Power management for the device is performed via the Control Interface. The device can be powered
on or off completely setting by the EN bit and SELPD bit low. Alternatively, when control bit SELPD is
high, only blocks selected by further control bits (SELDIS[3:0]) are powered down. This allows the
user to optimise power dissipation in certain modes, or to define an intermediate standby mode to
allow a quicker recovery into a fully active state. In Line-by-line operation, the green and blue channel
PGAs are automatically powered down.
All the internal registers maintain their previously programmed value in power down modes and the
Control Interface inputs remain active. Table 3 summarises the power down control bit functions.
Table 3 Power Down Control
(VDEL = 000) INTVSMP
(VDEL = 001) INTVSMP
(VDEL = 010) INTVSMP
(VDEL = 011) INTVSMP
(VDEL = 100) INTVSMP
(VDEL = 101) INTVSMP
(VDEL = 110) INTVSMP
(VDEL = 111) INTVSMP
(VDEL = 000) INTVSMP
(VDEL = 001) INTVSMP
(VDEL = 010) INTVSMP
(VDEL = 011) INTVSMP
(VDEL = 100) INTVSMP
(VDEL = 101) INTVSMP
(VDEL = 110) INTVSMP
(VDEL = 111) INTVSMP
EN
X
0
1
INPUT
PINS
POSNNEG = 0
POSNNEG = 1
SELDPD
0
0
1
MCLK
VSMP
Device completely powers down.
Device completely powers up.
Blocks with respective SELDIS[3:0] bit high are disabled.
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PD Rev 4.3 March 2007
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Production Data
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